spacex

why-is-bezos-trolling-musk-on-x-with-turtle-pics?-because-he-has-a-new-moon-plan.

Why is Bezos trolling Musk on X with turtle pics? Because he has a new Moon plan.


“It’s time to go back to the Moon—this time to stay.”

Step by step, ferociously? Credit: Jeff Bezos/X

The founder of Amazon, Jeff Bezos, does not often post on the social media site owned by his rival Elon Musk. But on Monday, Bezos did, sharing a black-and-white image of a turtle emerging from the shadows on X.

The photo, which included no text, may have stumped some observers. Yet for anyone familiar with Bezos’ privately owned space company, Blue Origin, the message was clear. The company’s coat of arms prominently features two turtles, a reference to one of Aesop’s Fables, “The Tortoise and the Hare,” in which the slow and steady tortoise wins the race over a quicker but overconfident hare.

Bezos’ foray into social media turtle trolling came about 12 hours after Musk made major waves in the space community by announcing that SpaceX was pivoting toward the Moon, rather than Mars, as a near-term destination. It represented a huge shift in Musk’s thinking, as the SpaceX founder has long spoken of building a multi-planetary civilization on Mars.

Welcome to the Club

It must have provided Bezos with some self-satisfaction. He is also a believer in human settlement of space, but he has espoused the view that our spacefaring species should begin on the Moon and then build orbital space habitats. Back in 2019, when unveiling his vision, Bezos spoke about NASA’s goal of returning humans to the Moon through the Artemis Program. “I love this,” Bezos said. “It’s the right thing to do. We can help meet that timeline but only because we started three years ago. It’s time to go back to the Moon—this time to stay.”

So in posting an image of a turtle, Bezos was sending a couple of messages to Musk. First, it was something of a sequel to Bezos’ infamous “Welcome to the Club” tweet more than a decade ago. And secondly, Bezos was telling Musk that slow and steady wins the race. In other words, Bezos believes Blue Origin will beat SpaceX back to the Moon.

Why would Bezos, whose company has launched to orbit all of two times, think Blue Origin has a chance to compete with SpaceX (which has more than 600 orbital launches) to land humans on the Moon?

The answer can be found in a pair of documents obtained by Ars that outline an accelerated Artemis architecture that Blue Origin is now developing.

Some background on the Human Landing System

A little more than five years ago, NASA reached out to the US commercial space industry for help in building a lunar lander. This lander would dock with NASA’s Orion spacecraft to carry humans from an elliptical orbit around the Moon, known as a near-rectilinear halo orbit, down to the lunar surface and back up to Orion.

The story of what happened as part of this bidding process is long and convoluted (including lawsuits and remarkable graphics like this one from Blue Origin). However, what really matters is that, by 2023, both SpaceX and Blue Origin had contracts from NASA to develop lunar landers—SpaceX with Starship and Blue Origin with Blue Moon MK2—for crewed missions as part of the Artemis Program. Both mission architectures required propellant refueling, essentially the launch of “tankers” from Earth to transfer large amounts of fuel and oxidizer into low-Earth orbit to complete a lunar landing. SpaceX was considered to have a considerable lead on Blue Origin.

In 2025, again for complex reasons, it became clear that while these reusable landers were fantastic for a long-term lunar program, there were two problems. The first was that SpaceX blew up three Starships during testing last year, raising serious questions about whether the company would be ready to complete a lunar landing before 2030. And second, it was becoming clear that China may well have a simpler lander that could put taikonauts on the Moon before 2030.

Blue’s new plan

Last October, Ars revealed that Blue Origin was beginning to work on an “accelerated” architecture that could potentially land humans on the Moon before 2030 without requiring orbital refueling. Now, thanks to some new documents, we know what those landings could look like. The screenshots shared with Ars show two different missions, an uncrewed “demo” flight and a crewed Moon landing. Here’s what they entail:

Uncrewed demo mission: This requires three launches of the New Glenn rocket. The first two launches each put a “Transfer stage” into low-Earth orbit. The third launch puts a “Blue Moon MK2-IL” into orbit. (The “IL” stands for Initial Lander, and it appears to be a smaller version of the Blue Moon MK2 lander.) All three vehicles dock, and the first transfer stage boosts the stack to an elliptical orbit around Earth (after this, the stage burns up in Earth’s atmosphere). The second transfer stage then boosts the MK-2 lander from Earth orbit into a 15×100 km orbit above the Moon. From here, the MK-2 lander separates and goes down to the Moon, later ascending back to low-lunar orbit.

Crewed demo mission: This requires four launches of the New Glenn rocket. The first three launches each put a “Transfer stage” into low-Earth orbit. A fourth launch puts the MK2-IL lander into orbit and the vehicles dock. The first transfer stage pushes the stack into an elliptical Earth orbit. The second transfer stage pushes the stack to rendezvous with Orion in a near-rectilinear halo orbit. After the crew boards, the third and final transfer stage pushes the MK-2 lander into a low-lunar orbit before separating. The lander goes down to the Moon and then ascends to re-rendezvous with Orion.

A rendering of Blue Origin’s proposed Lunar Transporter.

Credit: Blue Origin

A rendering of Blue Origin’s proposed Lunar Transporter. Credit: Blue Origin

The documents Ars has reviewed do not contain some crucial information. For example, what are the “transfer stages” they refer to? Are they the Lunar Transporter, a reusable space tug, under development? Or a modified upper stage of New Glenn or something else? It’s also unclear whether the Blue Moon MK2-IL is more like the simpler MK1 lander (which should fly soon) or if it will require major development work. Ars put these and other questions to Blue Origin, which declined to comment for this article.

So what to make of all this?

Sources indicated that Blue Origin is moving aggressively forward on its lunar program. This is one reason why the company recently iced its New Shepard spacecraft and has curtailed other activities to increase focus on major goals, including ramping up New Glenn cadence and accelerating lunar plans. This new architecture is one result of that.

There are major steps to go. The company must demonstrate the Blue Moon vehicle with the uncrewed MK1 mission, which likely will launch sometime late this spring or during the summer, with a lunar landing to follow. And although there is no orbital refueling as part of this new plan, it still requires complex docking and deep-space maneuvers, which Blue Origin has no experience with. Whether Bezos’ company could pull off all of these challenging tasks before 2030 is far from certain.

But one thing is clear. The 21st century space race back to the Moon now includes three participants: China’s state-run program, SpaceX, and Blue Origin. Game on.

Photo of Eric Berger

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

Why is Bezos trolling Musk on X with turtle pics? Because he has a new Moon plan. Read More »

us-decides-spacex-is-like-an-airline,-exempting-it-from-labor-relations-act

US decides SpaceX is like an airline, exempting it from Labor Relations Act


SpaceX deemed a common carrier

US labels SpaceX a common carrier by air, will regulate firm under railway law.

Elon Musk listens as President Donald Trump speaks to reporters in the Oval Office of the White House on May 30, 2025. Credit: Getty Images | Kevin Dietsch

The National Labor Relations Board abandoned a Biden-era complaint against SpaceX after a finding that the agency does not have jurisdiction over Elon Musk’s space company. The US labor board said SpaceX should instead be regulated under the Railway Labor Act, which governs labor relations at railroad and airline companies.

The Railway Labor Act is enforced by a separate agency, the National Mediation Board, and has different rules than the National Labor Relations Act enforced by the NLRB. For example, the Railway Labor Act has an extensive dispute-resolution process that makes it difficult for railroad and airline employees to strike. Employers regulated under the Railway Labor Act are exempt from the National Labor Relations Act.

In January 2024, an NLRB regional director alleged in a complaint that SpaceX illegally fired eight employees who, in an open letter, criticized CEO Musk as a “frequent source of embarrassment.” The complaint sought reinstatement of the employees, back pay, and letters of apology to the fired employees.

SpaceX responded by suing the NLRB, claiming the labor agency’s structure is unconstitutional. But a different issue SpaceX raised later—that it is a common carrier, like a rail company or airline—is what compelled the NLRB to drop its case. US regulators ultimately decided that SpaceX should be treated as a “common carrier by air” and “a carrier by air transporting mail” for the government.

SpaceX deemed a common carrier

In a February 6 letter to attorneys who represent the fired employees, NLRB Regional Director Danielle Pierce said the agency would defer to a National Mediation Board opinion that SpaceX is a common carrier:

In the course of the investigation and litigation of this case, a question was presented as to whether the Employer’s operations fall within the jurisdiction of the Railway Labor Act (“RLA”) rather than the [National Labor Relations] Act. As a result, consistent with Board law, the matter was referred to the National Mediation Board (“NMB”) on May 21, 2025 for an opinion as to whether the Employer is covered by the RLA. On January 14, 2026, the NMB issued its decision finding that the Employer is subject to the RLA as a common carrier by air engaged in interstate or foreign commerce as well as a carrier by air transporting mail for or under contract with the United States Government. Accordingly, the National Labor Relations Board lacks jurisdiction over the Employer and, therefore, I am dismissing your charge.

The letter was provided to Ars today by Anne Shaver, an attorney for the fired SpaceX employees. “The Railway Labor Act does not apply to space travel,” Shaver told Ars. “It is alarming that the NMB would take the initiative to radically expand the RLA’s jurisdiction to space travel absent direction from Congress, and that the NLRB would simply defer. We find the decision to be contrary to law and public policy.”

We contacted the NLRB today and will update this article if it provides a response. The NLRB decision was previously reported by Bloomberg and The New York Times.

“Jennifer Abruzzo, NLRB general counsel under former President Joe Biden, had rejected SpaceX’s claim that allegations against the company should be handled by the NMB,” Bloomberg wrote. “After President Donald Trump fired her in January last year, SpaceX asked the labor board to reconsider the issue.”

NLRB looked for way to settle

In April 2025, SpaceX and the NLRB told a federal appeals court in a joint filing that the NLRB would ask the NMB to decide whether it had jurisdiction over SpaceX. The decision to seek the NMB’s opinion was made “in the interests of potentially settling the legal disputes currently pending between the NLRB and SpaceX on terms mutually agreeable to both parties,” the joint filing said.

Shaver provided a July 2025 filing that the employees’ attorneys made with the NMB. The filing said that despite SpaceX claiming to hold itself out to the public as a common carrier through its website and certain marketing materials, the firm doesn’t actually carry passengers without “a negotiated, bespoke contract.”

“SpaceX’s descriptions of its transport activities are highly misleading,” the filing said. “First, regarding human spaceflight, other than sending astronauts to the ISS on behalf of the US and foreign governments, it has only ever agreed to contract with two very wealthy, famous entrepreneurs. The Inspiration4 and Polaris Dawn missions were both for Jared Isaacman, CEO of Shift4 and President Trump’s former pick to lead NASA prior to his public falling out with SpaceX CEO Elon Musk. Fram2 was for Chun Wang, a cryptocurrency investor who reportedly paid $55 million per seat. A total of two private customers for human spaceflight does not a common carrier make.”

The letter said that SpaceX redacted pricing information from marketing materials it submitted as exhibits. “If these were actually marketing materials provided to the public, there would be no need to redact pricing information,” the filing said. “SpaceX’s redactions underscore that it provides such materials at its discretion to select recipients, not to the public at large—far from the conduct of a true common carrier.”

The ex-employees’ attorneys further argued that SpaceX is not engaged in interstate or foreign commerce as defined by the Railway Labor Act. “SpaceX’s transport activities are not between one state or territory and another, nor between a state or territory and a foreign nation, nor between points in the same state but through another state. Rather, they originate in Florida, Texas, or California, and go to outer space,” the filing said.

Spaceflight company and… mail carrier?

The filing also disputed SpaceX’s argument that it is a “carrier by air transporting mail for or under contract with the United States Government.” Evidence presented by SpaceX shows only that it carried SpaceX employee letters to the crew of the International Space Station and “crew supplies provided for by the US government in its contracts with SpaceX to haul cargo to the ISS,” the filing said. “They do not show that the government has contracted with SpaceX as a ‘mail carrier.’”

SpaceX’s argument “is rife with speculation regarding its plans for the future,” the ex-employees’ attorneys told the NMB. “One can only surmise that the reason for its constant reference to its future intent to develop its role as a ‘common carrier’ is the lack of current standing in that capacity.” The filing said Congress would have to add space travel to the Railway Labor Act’s jurisdiction in order for SpaceX to be considered a common carrier.

When asked about plans for appeal, Shaver noted that they have a pending case in US District Court for the Central District of California: Holland-Thielen et al v. SpaceX and Elon Musk. “The status of that case is that we defeated SpaceX’s motion to compel arbitration at the district court level, and that is now on appeal to the 9th circuit,” she said.

SpaceX’s lawsuit against the NLRB is still ongoing at the US Court of Appeals for the 5th Circuit, but the case was put on hold while the sides waited for the NMB and NLRB to decide which agency has jurisdiction over SpaceX.

Photo of Jon Brodkin

Jon is a Senior IT Reporter for Ars Technica. He covers the telecom industry, Federal Communications Commission rulemakings, broadband consumer affairs, court cases, and government regulation of the tech industry.

US decides SpaceX is like an airline, exempting it from Labor Relations Act Read More »

why-would-elon-musk-pivot-from-mars-to-the-moon-all-of-a-sudden?

Why would Elon Musk pivot from Mars to the Moon all of a sudden?

As more than 120 million people tuned in to the Super Bowl for kickoff on Sunday evening, SpaceX founder Elon Musk turned instead to his social network. There, he tapped out an extended message in which he revealed that SpaceX is pivoting from the settlement of Mars to building a “self-growing” city on the Moon.

“For those unaware, SpaceX has already shifted focus to building a self-growing city on the Moon, as we can potentially achieve that in less than 10 years, whereas Mars would take 20+ years,” Musk wrote, in part.

Elon Musk tweet at 6: 24 pm ET on Sunday.

Credit: X/Elon Musk

Elon Musk tweet at 6: 24 pm ET on Sunday. Credit: X/Elon Musk

This is simultaneously a jolting and practical decision coming from Musk.

Why it’s a jolting decision

A quarter of a century ago, Musk founded SpaceX with a single-minded goal: settling Mars. One of his longest-tenured employees, SpaceX President and Chief Operating Officer Gwynne Shotwell, described her very first interview with Musk in 2002 to me as borderline messianic.

“He was talking about Mars, his Mars Oasis project,” Shotwell said. “He wanted to do Mars Oasis, because he wanted people to see that life on Mars was doable, and we needed to go there.”

She was not alone in this description of her first interaction with Musk. The vision for SpaceX has not wavered. Even in the company’s newest, massive Starship rocket factory at the Starbase facility in South Texas—also known as the Gateway to Mars—there are reminders of the red planet everywhere. For example, the carpet inside Musk’s executive conference room is rust red, the same color as the surface of Mars.

In the last 25 years, Musk has gone from an obscure, modestly wealthy person to the richest human being ever, from a political moderate to chief supporter of Donald Trump; from a respected entrepreneur to, well, to a lot of things to a lot of people: world’s greatest industrialist/supervillain/savant/grifter-fraudster.

But one thing that has remained constant across the Muskverse is his commitment to “extending the light of human consciousness” and to the belief that the best place to begin humanity’s journey toward becoming a multi-planetary species was Mars.

Why would Elon Musk pivot from Mars to the Moon all of a sudden? Read More »

rocket-report:-spacex-probes-upper-stage-malfunction;-starship-testing-resumes

Rocket Report: SpaceX probes upper stage malfunction; Starship testing resumes


Amazon has booked 10 more launches with SpaceX, citing a “near-term shortage in launch capacity.”

The top of SpaceX’s next Super Heavy booster, designated Booster 19, as the rocket undergoes testing at Starbase, Texas. The Rio Grande River is visible in the background. Credit: SpaceX

Welcome to Edition 8.28 of the Rocket Report! The big news in rocketry this week was that NASA still hasn’t solved the problem with hydrogen leaks on the Space Launch System. The problem caused months of delays before the first SLS launch in 2022, and the fuel leaks cropped up again Monday during a fueling test on NASA’s second SLS rocket. It is a continuing problem, and NASA’s sparse SLS launch rate makes every countdown an experiment, as my colleague Eric Berger wrote this week. NASA will conduct another fueling test in the coming weeks after troubleshooting the rocket’s leaky fueling line, but the launch of the Artemis II mission is off until March.

As always, we welcome reader submissions. If you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Blue Origin “pauses” New Shepard flights. Blue Origin has “paused” its New Shepard program for the next two years, a move that likely signals a permanent end to the suborbital space tourism initiative, Ars reports. The small rocket and capsule have been flying since April 2015 and have combined to make 38 launches, all but one of which were successful, and 36 landings. In its existence, the New Shepard program flew 98 people to space, however briefly, and launched more than 200 scientific and research payloads into the microgravity environment.

Moon first… So why is Blue Origin, founded by Jeff Bezos more than a quarter of a century ago, ending the company’s longest-running program? “We will redirect our people and resources toward further acceleration of our human lunar capabilities inclusive of New Glenn,” wrote the company’s chief executive, Dave Limp, in an internal email on January 30. “We have an extraordinary opportunity to be a part of our nation’s goal of returning to the Moon and establishing a permanent, sustained lunar presence.” The cancellation came, generally, as a surprise to Blue Origin employees. The company flew its most recent mission a week prior to the announcement, launching six people into space.

The easiest way to keep up with Eric Berger’s and Stephen Clark’s reporting on all things space is to sign up for our newsletter. We’ll collect their stories and deliver them straight to your inbox.

Sign Me Up!

Firefly nears return to flight. Firefly Aerospace is preparing to launch its next 1-ton-class Alpha rocket later this month from Vandenberg Space Force Base, California. The Texas-based company announced last month that it shipped the Alpha rocket to the California spaceport, and a follow-up post on social media on January 29 showed a video of the rocket rolling out to its launch pad for testing. “Alpha is vertical on the pad and getting ready for our static fire ahead of the Stairway to Seven mission!” Firefly wrote on X.

Getting back on track... This is an important mission for Firefly’s Alpha rocket program. On the most recent Alpha flight last April, the rocket’s first stage exploded in flight, moments after separation from the second stage. The blast wave damaged the upper stage engine, preventing it from reaching orbit with a small commercial tech demo satellite. Then, in September, the booster stage for the next Alpha launch was destroyed during a preflight test in Texas. Firefly says the upcoming mission is purely a test flight and won’t fly with any customer payloads. The company announced that an upgraded “Block II” version of the Alpha rocket will debut on the subsequent mission.

China to test next-gen crew capsule. China is gearing up for an important test of its new Mengzhou spacecraft, perhaps as soon as February 11, according to airspace warning notices issued around the Wenchang spaceport on Hainan Island. Images from public viewing sites around the launch site showed a test model of the Mengzhou spacecraft being lifted atop a booster stage this week. The flight next week is expected to include an in-flight test of the capsule’s launch abort system. Mengzhou is China’s next-generation crew spacecraft for human flights to the Moon. It will also replace China’s Shenzhou crew spacecraft used for flights to the Tiangong space station in low-Earth orbit.

Proceeding apace... The in-flight abort test follows a pad abort test of the Mengzhou spacecraft last year as China marches toward the program’s first orbital test flight. The booster stage for the in-flight abort test is a subscale version of China’s new Long March 10 rocket, the partially reusable human-rated launcher under development for the country’s lunar program. Therefore, next week’s milestone flight will serve as an important test of not only the Mengzhou spacecraft but also its rocket.

SpaceX confirms upper stage malfunction. SpaceX kicked off the month of February with a Monday morning Falcon 9 rocket launch from Vandenberg Space Force Base in California. However, the rocket experienced an anomaly near the end of the mission, Spaceflight Now reports. The rocket deployed its payload of 25 Starlink satellites as planned, but SpaceX said the Falcon 9’s second stage “experienced an off-nominal condition” during preparation for an engine firing to steer back into the atmosphere for a guided, destructive reentry. The rocket remained in a low-altitude orbit and made an unguided reentry later in the week.

Launches temporarily on hold... “Teams are reviewing data to determine root cause and corrective actions before returning to flight,” SpaceX said in a statement. A Starlink launch from Florida originally planned for this week is now on hold. SpaceX returned the Falcon 9 rocket’s payload fairing, containing the Starlink payloads, from the launch pad back to the hangar at Kennedy Space Center to wait for the next launch opportunity. SpaceX’s Falcon 9 team in Florida is now focusing on preparations for launch of the Crew-12 mission to the International Space Station, targeted for no earlier than February 11. The schedule for Crew-12 will hinge on how quickly SpaceX can complete the investigation into Monday’s upper stage malfunction. (submitted by EllPeaTea)

Amazon’s new booking with SpaceX. Amazon has purchased an additional 10 Falcon 9 launches from SpaceX as part of its efforts to accelerate deployment of its broadband satellite constellation, Space News reports. The deal, which neither Amazon nor SpaceX previously announced, was disclosed in an Amazon filing with the Federal Communications Commission on January 30, seeking an extension of a July deadline to deploy half of its Amazon Leo constellation. Amazon has launched only 180 satellites of its planned 3,232-satellite constellation, rendering the July deadline unattainable. Amazon asked the FCC to extend the July deadline by two years or waive it entirely, but did not request an extension to the 2029 deadline for full deployment of the constellation.

“Near-term shortage in launch capacity”… In the filing with the FCC, Amazon said it faces a “near-term shortage of launch capacity” and is securing additional launch options “wherever available.” That effort includes working with SpaceX, whose Starlink constellation directly competes with Amazon Leo. Amazon bypassed SpaceX entirely when it made its initial orders for more than 80 Amazon Leo launches with United Launch Alliance, Arianespace, and Blue Origin, owned by Amazon founder Jeff Bezos. But Amazon later reserved three launches with SpaceX that flew last year and has now added 10 more SpaceX launches to its manifest. So far, Amazon has only launched satellites on ULA’s soon-to-retire Atlas V rocket and SpaceX’s Falcon 9. Amazon has not started flying on the new Vulcan, Ariane 6, or New Glenn rockets, which comprise the bulk of the constellation’s launch bookings. That could change next week with the first launch of Amazon Leo satellites on Europe’s Ariane 6 rocket. (submitted by EllPeaTea)

China launches satellite for Algeria. Algeria’s Alsat-3B mission, an Earth observation satellite developed in collaboration with China, launched aboard a Chinese Long March 2C rocket on January 30, Connecting Africa reports. Alsat-3B is the twin of Alsat-3A, which launched from China earlier in the month. Algeria’s government signed a contract with China in 2023 covering the development and launch of the two Alsat-3 satellites. Both satellites are designed to provide high‑resolution Earth observation imagery, enhancing Algeria’s geospatial intelligence capabilities.

Belt, road, and orbitIn a joint statement, Chinese President Xi Jinping said the Algerian remote-sensing satellite project is another successful example of China-Algeria aerospace cooperation and an important demonstration of the two nations’ comprehensive strategic partnership. China has inked similar space-related partnerships to produce and launch satellites for other African nations, including Egypt, Ethiopia, Nigeria, and Sudan.

Soyuz-5 launch set for March. Just a few months ago, Russia aimed to launch the first flight of the new Soyuz-5 medium-lift rocket before the end of 2025. Now, the Soyuz-5’s debut test flight is targeted for the end of March, Aviation Week & Space Technology reports. Dmitry Baranov, the deputy head of Roscosmos, announced the new schedule at a scientific conference in Moscow. The mission from the Baikonur Cosmodrome in Kazakhstan would mark the first flight of a new Russian rocket since 2014.

A reactionary rocketArs has reported on the Soyuz-5 project before. While the rocket will use a new overall design, the underlying technology is not all that new. The Soyuz-5, also named Irtysh, is intended to be a replacement for the Zenit rocket, a medium-lift launcher developed in the final years before the fall of the Soviet Union. The Zenit rocket’s main stages were manufactured in Ukraine, and tensions between Russia and Ukraine spelled the end of the Zenit program even before Russia invaded its neighbor in 2022. The Soyuz-5 uses a modified version of the RD-171 engine that has flown since the 1980s. This new RD-171 design uses all Russian components. The upper stage engine is based on the same design flown on Russia’s workhorse Soyuz-2 rocket.

Fueling test reveals leaks on SLS rocket. The launch of NASA’s Artemis II mission, the first flight of astronauts to the Moon in more than 53 years, will have to wait another month after a fueling test on Monday uncovered hydrogen leaks in the connection between the rocket and its launch platform at Kennedy Space Center in Florida, Ars reports. The practice countdown was designed to identify problems and provide NASA an opportunity to fix them before launch. Most importantly, the test revealed NASA still has not fully resolved recurring hydrogen leaks that delayed the launch of the unpiloted Artemis I test flight by several months in 2022. Artemis I finally launched successfully after engineers revised their hydrogen loading procedures to overcome the leak.

Hardware poor… Now, the second Space Launch System (SLS) rocket is on the cusp of launching a crew for the first time. Even as it reaches maturity, the rocket is going nowhere fast. It has been more than three years since NASA discovered leaks on the first SLS rocket. The rocket alone costs more than $2 billion to build. The program is hardware poor, leaving NASA unable to build a test model that might have been used to troubleshoot and resolve the hydrogen leaks before the agency proceeded into the Artemis II launch campaign. “Every SLS rocket is a work of art, every launch campaign an adventure, every mission subject to excessive delays. It’s definitely not ideal,” Ars reported in a story examining this problem.

SpaceX, meet xAI. SpaceX has formally acquired another one of Elon Musk’s companies, xAi, Ars reports. The merging of what is arguably Musk’s most successful company, SpaceX, with the more speculative xAI venture is a risk. Founded in 2023, xAI’s main products are the generative AI chatbot Grok and the social media site X, formerly known as Twitter. The company aims to compete with OpenAI and other artificial intelligence firms. However, Grok has been controversial, including the sexualization of women and children through AI-generated images, as has Musk’s management of Twitter.

Lots of assumptions… There can be no question that the merger of SpaceX—the world’s premier spaceflight company—and the artificial intelligence firm offers potential strategic advances. With this merger, Musk plans to use SpaceX’s deep expertise in rapid launch and satellite manufacturing and management to deploy a constellation of up to 1 million orbital data centers, providing the backbone of computing power needed to support xAI’s operations. All of this is predicated on several assumptions, including that AI is not a bubble, orbital data centers are cost-competitive compared to ground-based data centers, and that compute is the essential roadblock that will unlock widespread adoption of AI in society. Speculative, indeed, but only SpaceX has a rocket that might one day be able to realistically deploy a million satellites.

Starship testing resumes. The enormous rocket we’re talking about, of course, is SpaceX’s Starship. Ground teams at Starbase, Texas, have rolled the Super Heavy booster for SpaceX’s next Starship flight to a test stand for a series of checkouts ahead of the flight, currently slated for sometime in March. This will be the first launch of SpaceX’s upgraded “Block 3” Starship, with improvements aimed at making the rocket more reliable following several setbacks with Starship Block 2 last year.

Frosty night on the border… This is the second time a Block 3 booster has made the trip to the test stand at Starbase, located just north of the US-Mexico border. Booster 18 suffered a structural failure at the test site in November, forcing SpaceX to scrap it and complete the next rocket in line, Booster 19. On Wednesday night, SpaceX put Booster 19 through cryogenic proof testing, clearing a key milestone on the path to launch. The next flight will likely follow a similar profile as previous Starship missions, with a suborbital arc carrying the ship from its South Texas launch base to a splashdown in the Indian Ocean. If successful, the test will pave the way for bigger tests to come, including an in-space refueling demo and the catch and recovery of a Starship vehicle returning from space.

Next three launches

Feb. 7: Long March 2F | Chinese spaceplane? | Jiuquan Satellite Launch Center, China | 03: 55 UTC

Feb. 7: Falcon 9 | Starlink 17-33 | Vandenberg Space Force Base, California | 17: 05 UTC

Feb. 11: Falcon 9 | Crew-12 | Cape Canaveral Space Force Station, Florida | 11: 01 UTC

Photo of Stephen Clark

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

Rocket Report: SpaceX probes upper stage malfunction; Starship testing resumes Read More »

spacex-acquires-xai,-plans-1-million-satellite-constellation-to-power-it

SpaceX acquires xAI, plans 1 million satellite constellation to power it

SpaceX has formally acquired another of Elon Musk’s companies, xAi, the space company announced on Monday afternoon.

“SpaceX has acquired xAI to form the most ambitious, vertically-integrated innovation engine on (and off) Earth, with AI, rockets, space-based internet, direct-to-mobile device communications and the world’s foremost real-time information and free speech platform,” the company said. “This marks not just the next chapter, but the next book in SpaceX and xAI’s mission: scaling to make a sentient sun to understand the Universe and extend the light of consciousness to the stars!”

The merging of what is arguably Musk’s most successful company, SpaceX, with the more speculative xAI venture is a risk. But Musk strongly believes that artificial intelligence is central to humanity’s future and wants to be among those leading in its development.

With this merger, he plans to use SpaceX’s deep expertise in rapid launch and satellite manufacturing and management to deploy a constellation of up to 1 million orbital data centers. This will provide the backbone of computing power needed to support xAI’s operations.

“This new constellation will build upon the well-established space sustainability design and operational strategies, including end-of-life disposal, that have proven successful for SpaceX’s existing broadband satellite systems,” Musk wrote in an email to employees on Monday.

This is a developing story, and it will be updated.

SpaceX acquires xAI, plans 1 million satellite constellation to power it Read More »

russian-drones-use-starlink,-but-ukraine-has-plan-to-block-their-internet-access

Russian drones use Starlink, but Ukraine has plan to block their Internet access

Ukraine and SpaceX say they recently collaborated to stop strikes by Russian drones using Starlink and will soon block all unregistered use of Starlink terminals in an attempt to stop Russia’s military from using the satellite broadband network over Ukraine territory.

Ukrainians will soon be required to register their Starlink terminals to get on a whitelist. After that, “only verified and registered terminals will be allowed to operate in the country. All others will be disconnected,” the Ukraine Ministry of Defense said in a press release today.

Ukraine Minister of Defense Mykhailo Fedorov “emphasized that the only technical solution to counter this threat is to introduce a ‘whitelist’ and authorize all terminals,” according to the ministry. “This is a necessary step by the Government to save Ukrainian lives and protect critical energy infrastructure,” Fedorov said.

Fedorov has posted on SpaceX CEO Elon Musk’s X social network a few times in the past few days about Russia’s use of Starlink and Ukraine’s attempt to counter it. On January 29, Fedorov said his agency contacted SpaceX hours after “reports that Russian drones equipped with Starlink connectivity were operating over Ukrainian cities.” Ukraine “proposed concrete ways to resolve the issue,” he said.

Fedorov said that SpaceX started working on a solution immediately after the outreach. Musk wrote yesterday, “Looks like the steps we took to stop the unauthorized use of Starlink by Russia have worked. Let us know if more needs to be done.”

Fedorov said yesterday that because of “the first steps taken in recent days, no Ukrainians have been killed by Russian drones using Starlink.” Fedorov said the ministry “will share instructions for Ukrainian users to register their Starlink terminals for verification” in the coming days, and that registration “will be simple, fast, and user-friendly.”

Ukraine’s whitelist plan will require residents to make “one visit to the nearest Administrative Services Center,” a process that Fedorov said will be “free, fast, and without excessive bureaucracy.” Businesses will be able to verify their Starlink terminals online, while the military and service members have separate systems for registration. Service members with personal Starlink terminals will “only need to add the terminal to the ‘whitelist’ to prevent disconnection.”

Russian drones use Starlink, but Ukraine has plan to block their Internet access Read More »

nasa-faces-a-crucial-choice-on-a-mars-spacecraft—and-it-must-decide-soon

NASA faces a crucial choice on a Mars spacecraft—and it must decide soon

However, some leaders within NASA see the language in the Cruz legislation as spelling out a telecommunications orbiter only and believe it would be difficult, if not impossible, to run a procurement competition between now and September 30th for anything beyond a straightforward communications orbiter.

In a statement provided to Ars by a NASA spokesperson, the agency said that is what it intends to do.

“NASA will procure a high-performance Mars telecommunications orbiter that will provide robust, continuous communications for Mars missions,” a spokesperson said. “NASA looks forward to collaborating with our commercial partners to advance deep space communications and navigation capabilities, strengthening US leadership in Mars infrastructure and the commercial space sector.”

Big decisions loom

Even so, sources said Isaacman has yet to decide whether the orbiter should include scientific instruments. NASA could also tap into other funding in its fiscal year 2026 budget, which included $110 million for unspecified “Mars Future Missions,” as well as a large wedge of funding that could potentially be used to support a Mars commercial payload delivery program.

The range of options before NASA, therefore, includes asking industry for a single telecom orbiter from one company, asking for a telecom orbiter with the capability to add a couple of instruments, or creating competition by asking for multiple orbiters and capabilities by tapping into the $700 million in the Cruz bill but then augmenting this with other Mars funding.

One indication that this process has been muddied within NASA came a week ago, when the space agency briefly posted a “Justification for Other Than Full and Open Competition, Extension” notice on a government website. It stated that the agency “will only conduct a competition among vendors that satisfy the statutory qualifications.” The notice also listed the companies eligible to bid based on the Cruz language: Blue Origin, L3Harris, Lockheed Martin, Northrop Grumman, Rocket Lab, SpaceX, Quantum Space, and Whittinghill Aerospace.

NASA faces a crucial choice on a Mars spacecraft—and it must decide soon Read More »

spacex-sends-list-of-demands-to-us-states-giving-broadband-grants-to-starlink

SpaceX sends list of demands to US states giving broadband grants to Starlink


SpaceX won’t make specific promises on Starlink network capacity or subscribers.

A Starlink user terminal during winter. Credit: Getty Images | AntaresNS

SpaceX has made a new set of demands on state governments that would ensure Starlink receives federal grant money even when residents don’t purchase Starlink broadband service.

SpaceX said it will provide “all necessary equipment” to receive broadband “at no cost to subscribers requesting service,” which will apparently eliminate the up-front hardware fee for Starlink equipment. But SpaceX isn’t promising lower-than-usual monthly prices to consumers in those subsidized areas. SpaceX pledged to make broadband available for $80 or less a month, plus taxes and fees, to people with low incomes in the subsidized areas. For comparison, the normal Starlink residential prices advertised on its website range from $50 to $120 a month.

SpaceX’s demands would also guarantee that it gets paid by the government even if it doesn’t reserve “large portions” of Starlink network capacity for homes in the areas that are supposed to receive government-subsidized Internet service. Moreover, SpaceX would not be responsible for ensuring that Starlink equipment is installed correctly at each customer location.

SpaceX sent a letter to state broadband offices proposing a rider with terms that it hopes will be applied to all grants it receives throughout the country. The letter was obtained and published by Broadband.io and the Benton Institute for Broadband & Society.

Arguing that SpaceX should receive grant money regardless of whether residents purchase Starlink service, the letter to states said that grant payments should not depend on “the independent purchasing decisions of users.” SpaceX also said it will not hold “large portions of capacity fallow” to ensure that people in subsidized areas receive good service, but will instead continue its preexisting practice of “dynamically allocat[ing] capacity where needed.”

SpaceX capitalizes on Trump overhaul

SpaceX’s proposed contract rider would apply to grants distributed under the US government’s Broadband Equity, Access, and Deployment (BEAD) program. BEAD was created by Congress in a 2021 law that authorized spending over $42 billion to make broadband networks available in areas without modern service.

While the Biden administration designed the program to prioritize fiber deployments, the Trump administration threw out the previous plans. Under Trump, the National Telecommunications and Information Administration (NTIA) deemed the Biden-era plan too costly and changed the rules to make it easier for satellite services to obtain grant funding. The overhaul cut projected spending to about $21 billion, and it’s still not clear what will happen to the other $21 billion.

Starlink sought billions in grants after the new rules were put in place, but states didn’t want to provide that much. So far, SpaceX is slated to receive $733.5 million to offer broadband at 472,600 locations. Amazon’s Leo satellite service (formerly Kuiper) is set to receive $311 million for 415,000 locations.

While not every state plan is final, it looks like satellite networks will get about 5 percent of the grant money and serve over 22 percent of locations funded by grants. Satellite companies are getting smaller payments on a per-location basis because, unlike fiber providers, they don’t have to install infrastructure at each customer’s location.

The concessions sought by SpaceX “would limit Starlink’s performance obligations, payment schedules, non-compliance penalties, reporting expectations, and labor and insurance standards,” wrote Drew Garner, director of policy engagement at the Benton Institute. Garner argued that SpaceX’s demands illustrate problems in how the Trump NTIA rewrote program rules to increase reliance on low-Earth orbit (LEO) satellite providers.

“BEAD was designed primarily to deploy terrestrial networks, which are physically located in communities, built with traditional construction methods, and are relatively easy to monitor and inspect,” Garner wrote. “But, on June 6, 2025, NTIA restructured BEAD in ways that greatly increased participation by LEO providers, exacerbating the challenge of applying BEAD’s terrestrial-focused rules to LEO’s extraterrestrial networks.”

SpaceX: Labor rules shouldn’t apply to us

Among other things, SpaceX is trying to “minimize states’ ability to penalize LEO grantees for defaulting or failing to comply with contract requirements,” and avoid having “to report on the use of BEAD funds or other financial information related to the grant,” Garner wrote.

SpaceX’s letter said that “all requirements related to labor issues (e.g., prevailing wage and similar obligations), contractors, and procurement are inapplicable to SpaceX” because “there are no identifiable employees, contractors, or contracts being funded” to support Starlink broadband service in each state. Similarly, “there are no identifiable pieces of SpaceX infrastructure equipment (other than satellite capacity delivered from Space) being funded via BEAD,” the company said.

It’s not clear whether SpaceX will turn down grants if it doesn’t get what it wants. We asked the company for information on its plans if states refuse its terms and will update this article if we get a response. SpaceX’s proposed terms could also be applied to Amazon if states accept them.

SpaceX’s letter said that despite the Trump administration’s changes to BEAD, “a number of issues remain that, if unaddressed, could render LEO participation in the program untenable.” SpaceX said it wants to work with states “to more fully tailor aspects of the project agreement to the reality of LEO deployment and operations now that the initial project selection and approval phase is accomplished.”

Space said it wants to avoid extensive negotiations over its proposed terms. But the acknowledgement that some negotiation may be necessary seems to recognize that states don’t have to comply with the demands:

Toward this goal, we have developed a set of terms that we intend to function as a rider to all subgrant agreements across the country. This rider is intentionally limited in scope to addressing items of critical importance, to minimize the need for negotiation, and provide clarity to both parties moving forward. Our intention is for the LEO rider to enable the state to keep its core subgrant agreement relatively uniform amongst grantees, retain state-law-specific requirements, co-locate all relevant LEO-specific material for ease of administration, and standardize agreements across states.

Low-income plan: $80 plus taxes and fees

SpaceX’s proposed contract rider said the firm will offer broadband plans for “a monthly cost of $80 or less before applicable taxes and fees” to households that meet the low-income eligibility guidelines used by the FCC’s Lifeline program. People who don’t qualify for low-income plans would presumably pay regular Starlink rates.

The BEAD law requires ISPs receiving federal funds to offer at least one “low-cost broadband service option for eligible subscribers.” While the Biden administration sought low-income plans that cost as little as $30 a month, the Trump administration decided that states may not tell ISPs what prices to charge in their low-cost options. A Trump administration threat to shut states out of BEAD if they required low prices doomed a California proposal to mandate $15 monthly plans for people with low incomes.

SpaceX told state governments that it should receive 50 percent of grant funds when it certifies that it is capable of providing BEAD-quality service (100Mbps download and 20Mbps upload speeds) within 10 business days to any potential customer that requests it in a grant area. The rest of the money would be distributed quarterly over the 10-year period of the grant.

Explaining why SpaceX shouldn’t be penalized if potential customers decide Starlink prices are too high, the firm wrote:

Tying payments to the independent purchasing decisions of users solely for awardees using LEO technologies, and not for any other technology, is, by definition, not technology neutral. SpaceX is already appropriately incentivized to gather customers by the opportunity to capture the monthly recurring revenue from each subscriber. SpaceX was in most instances awarded the most remote and difficult areas to serve among all other providers. SpaceX is up to the task of ensuring success in these challenging areas, however, it cannot undertake this mission without certainty of consistent payments to compensate such work.

Based on SpaceX’s letter, it sounds like the work the company must do to ensure quality of service at BEAD-funded locations is the same work it has already done to make Starlink available across the US. Instead of dedicated capacity for government-subsidized deployments, SpaceX said it will simply factor the needs of BEAD users into its planning:

With respect to capacity reservations, we have found some confusion regarding how such a reservation is made. Given the dynamic nature of the Starlink network, the reservation will not be such that SpaceX holds large portions of capacity fallow. This would be wasteful, inefficient, and does not reflect a LEO providers [sic] ability to dynamically allocate capacity where needed. Instead, SpaceX will include the capacity needs of BEAD users into its network planning efforts. These activities are multifaceted and include real time capacity allocation at the network level, launch activities, and sales efforts. As a result, there is no single “document” evidencing the reservation of capacity.

SpaceX wants limits on performance testing

SpaceX said it will be obvious if it does not provide sufficient service, and thus the states should not seek additional performance testing beyond what’s included in the NTIA guidelines. “If sufficient capacity was not reserved, performance testing will reveal insufficient quality of service, and this deficiency will be transparent to the state. Developing a separate, indirect measurement of the reservation itself is infeasible and unnecessary,” SpaceX said.

The proposed rider said that any network testing must “exclude subscribers who have installed CPE [consumer premise equipment] such that its view of the sky is obstructed and subscribers with damaged or malfunctioning CPE, as determined by GRANTEE.”

The “as determined by GRANTEE” phrase means it’s up to SpaceX to decide which subscribers should be excluded from testing. As the Benton Society says, the rider stipulates that “performance tests can only be considered if the LEO provider determines that the subscriber’s equipment is properly installed, and, notably, the LEO provider is not obligated to ensure proper installation.”

SpaceX’s proposed rider defines a “standard installation” as the mailing of equipment to a subscriber. That’s the standard process for un-subsidized areas throughout the country, and SpaceX doesn’t want to do any extra work to help set up equipment for customers in subsidized areas. However, customers may be able to purchase professional installation for an extra fee.

“For the avoidance of doubt, the GRANTEE will not be responsible for completing a permanent installation” at each location, SpaceX’s proposed rider says. A satellite provider “may choose to offer the subscriber professional services for permanent installation of CPE at an additional fee, but such professional services shall not be considered part of the standard installation,” it says.

Photo of Jon Brodkin

Jon is a Senior IT Reporter for Ars Technica. He covers the telecom industry, Federal Communications Commission rulemakings, broadband consumer affairs, court cases, and government regulation of the tech industry.

SpaceX sends list of demands to US states giving broadband grants to Starlink Read More »

nasa’s-first-medical-evacuation-from-space-ends-with-on-target-splashdown

NASA’s first medical evacuation from space ends with on-target splashdown

“Because the astronaut is absolutely stable, this is not an emergent evacuation,” said James “JD” Polk, NASA’s chief medical officer, in a press conference last week. “We’re not immediately disembarking and getting the astronaut down.”

Amit Kshatriya, the agency’s associate administrator, called the situation a “controlled medical evacuation” in a briefing with reporters.

But without a confirmed diagnosis of the astronaut’s medical issue, there was some “lingering risk” for the astronaut’s health if they remained in orbit, Polk said. That’s why NASA Administrator Jared Isaacman and his deputies agreed to call an early end to the Crew-11 mission.

A first for NASA

The Crew-11 mission launched on August 1 and was supposed to stay on the space station until around February 20, a few days after the scheduled arrival of SpaceX’s Crew-12 mission with a team of replacement astronauts. But the early departure means the space station will operate with a crew of three until the launch of Crew-12 next month.

NASA astronaut Chris Williams will be the sole astronaut responsible for maintaining the US segment of the station. Russian cosmonauts Sergey Kud-Sverchkov and Sergey Mikayev launched with Williams in November on a Russian Soyuz vehicle. The Crew Dragon was the lifeboat for all four Crew-11 astronauts, so standard procedure called for the entire crew to return with the astronaut suffering the undisclosed medical issue.

The space station regularly operated with just three crew members for the first decade of its existence. The complex has been permanently staffed since 2000, sometimes with as few as two astronauts or cosmonauts. The standard crew size was raised to six in 2009, then to seven in 2020.

SpaceX’s Crew Dragon Endeavour spacecraft descends toward the Pacific Ocean under four main parachutes.

Credit: NASA

SpaceX’s Crew Dragon Endeavour spacecraft descends toward the Pacific Ocean under four main parachutes. Credit: NASA

Williams will have his hands full until reinforcements arrive. The scaled-down crew will not be able to undertake any spacewalks, and some of the lab’s science programs may have to be deferred to ensure the crew can keep up with maintenance tasks.

This is the first time NASA has called an early end to a space mission for medical reasons, but the Soviet Union faced similar circumstances several times during the Cold War. Russian officials cut short an expedition to the Salyut 7 space station in 1985 after the mission’s commander fell ill in orbit. A similar situation occurred in 1976 with the Soyuz 21 mission to the Salyut 5 space station.

NASA’s first medical evacuation from space ends with on-target splashdown Read More »

nasa-launches-new-mission-to-get-the-most-out-of-the-james-webb-space-telescope

NASA launches new mission to get the most out of the James Webb Space Telescope


“It was not recognized how serious a problem that is until… about 2017 or 2018.”

The Pandora observatory, seen here inside a clean room, is about the size of a refrigerator. Credit: Blue Canyon Technologies

Among other things, the James Webb Space Telescope is designed to get us closer to finding habitable worlds around faraway stars. From its perch a million miles from Earth, Webb’s huge gold-coated mirror collects more light than any other telescope put into space.

The Webb telescope, launched in 2021 at a cost of more than $10 billion, has the sensitivity to peer into distant planetary systems and detect the telltale chemical fingerprints of molecules critical to or indicative of potential life, like water vapor, carbon dioxide, and methane. Webb can do this while also observing the oldest observable galaxies in the Universe and studying planets, moons, and smaller objects within our own Solar System.

Naturally, astronomers want to get the most out of their big-budget observatory. That’s where NASA’s Pandora mission comes in.

The Pandora satellite rocketed into orbit early Sunday from Vandenberg Space Force Base, California. It hitched a ride with around 40 other small payloads aboard a SpaceX Falcon 9 rocket, launching into a polar Sun-synchronous orbit before deploying at an altitude of roughly 380 miles (613 kilometers).

Over the next few weeks, ground controllers will put Pandora through a series of commissioning and calibration steps before turning its eyes toward deep space. Pandora is a fraction of the size of Webb. Its primary mirror is about the size of the largest consumer-grade amateur telescopes, less than one-tenth the dimension of Webb’s. NASA capped Pandora’s budget at $20 million. The budget to develop Webb was more than 500 times higher.

Double-checking Webb

So what can little Pandora add to Webb’s bleeding-edge science? First, it helps to understand how scientists use Webb to study exoplanets. When a planet passes in front of its parent star, some of the starlight shines through its atmosphere. Webb has the sensitivity to detect the filtered starlight and break it apart into its spectral components, telling astronomers about the composition of clouds and hazes in the planet’s atmosphere. Ultimately, the data is useful in determining whether an exoplanet might be like Earth.

“I liken it often to holding a glass of wine in front of a candle, so that we can see really what’s inside,” said Daniel Apai, a member of Pandora’s science team from the University of Arizona. “We can assess, basically, the quality of the wine. In this case, we use the light that filters through the star’s [atmosphere] through the planetary atmosphere to judge what chemicals, gases in particular, may be present. Water vapor is one that we are the most sensitive to.”

But there’s a catch. Stars shine millions to billions of times brighter than their planetary companions, and starlight isn’t constant. Like the Sun, other stars have spots, flares, and variability over hours, days, or years. Hot spots and cool spots rotate in and out of view. And the star’s own atmospheres can contain some of the same molecules scientists are seeking to find on exoplanets, including water vapor.

Therefore, a star’s spectral signature easily outshines the signal coming from a nearby planet. Astronomers discovered this signal “contamination” when they started looking for potentially habitable worlds, injecting confounding uncertainties into their findings. Were the promising spectra they were seeing coming from the planet or the star?

Artist’s concept of the Pandora telescope with an exoplanet and two stars in the background.

Credit: NASA’s Goddard Space Flight Center/Conceptual Image Lab

Artist’s concept of the Pandora telescope with an exoplanet and two stars in the background. Credit: NASA’s Goddard Space Flight Center/Conceptual Image Lab

“One of the ways that this manifests is by making you think that you’re seeing absorption features like water and potentially methane when there may not be any, or, conversely, you’re not seeing the signatures that are there because they’re masked by the stellar signal,” said Tom Barclay, deputy project scientist and technical lead on the Pandora mission at NASA’s Goddard Space Flight Center.

The problem became apparent in the 2010s as astronomers used more powerful telescopes to see the finer details of exoplanets.

“This is something that we always suspected as a community,” Apai told Ars. “We always suspected that stars are not perfect. At some point, it becomes a problem. But it was not recognized how serious a problem that is until, I would say, about 2017 or 2018.”

Scientists quickly got to work looking for a solution, and NASA selected the Pandora mission for development in 2021, just months before the launch of Webb.

“When we’re trying to find water in the atmospheres of these small Earth-like planets, we want to be really sure it’s not coming from the star before we go tell the press and make a big stink about it,” said Elisa Quintana, Pandora’s lead scientist at NASA’s Goddard Space Flight Center. “So we designed the Pandora mission specifically to solve this problem.”

From low-Earth orbit, Pandora will observe exoplanets and their stars simultaneously, allowing astronomers to correct their measurements of the planet’s atmospheric composition and structure based on the ever-changing conditions of the host star itself. Webb could theoretically do this work, but scientists already fill every hour of Webb’s schedule. Pandora will point and stare at 20 preselected exoplanets 10 times during its one-year prime mission, collecting 24 hours of visible and infrared observations with each visit. This will capture short-term and longer-term changes in each star’s behavior.

SpaceX launched Pandora into a so-called “twilight orbit” that follows the boundary between day and night on Earth, allowing the satellite to keep its solar panels illuminated by the Sun while performing its observations.

“We can send this small telescope out, sit on a star for a really long time, and sort of map all the star spots, and really disentangle the star and planet signals,” Quintana said in a recent panel discussion at NASA Goddard. “It’s filling a really nice gap in helping us to sort of calibrate all these stars that James Webb is going to look at, so we can be really confident that all of these molecules that we’re detecting in planets are real.”

“I think this is really the most important scientific barrier that we have to break down to fully unlock the potential of Webb and future missions,” Apai said.

Looking down the barrel of Pandora’s 17-inch-wide (45-centimeter) telescope.

Credit: NASA/Jordan Karburn, LLNL

Looking down the barrel of Pandora’s 17-inch-wide (45-centimeter) telescope. Credit: NASA/Jordan Karburn, LLNL

Ben Hord, a member of Pandora’s science team at Goddard, singled out one example in a presentation at an American Astronomical Society meeting last year. This planet, named GJ 486 b, is a “super-Earth” discovered in 2021 circling a relatively cool red dwarf star. Hord said astronomers had trouble determining if the planet has a water-rich atmosphere based on Webb’s observations alone.

“We want to know if water is in the atmospheres of these exoplanets, and this stellar contamination from the spots on the star can mask or mimic features like water,” Hord said. “Our hope is that Pandora will help James Webb data be even more precise by providing context and understanding for these host stars and these planetary systems.”

Planets around small dwarf stars are some of the best candidates for finding a true Earth analog. Because these stars put out a fraction of the heat of the Sun, a potentially habitable planet could lurk very close to its host, completing a year in a handful of days. This allows astronomers to see the planet repeatedly as it passes in front of its star, rapidly building a dataset on its size, structure, and environment.

Scientists hope they can extend the lessons learned from Pandora’s observations of a sample of 20 exoplanets to other worlds in our galactic neighborhood. As of late last year, astronomers have confirmed detections of more than 6,000 exoplanets.

“With a well-corrected spectrum, we can say there’s water, there’s nitrogen,” Quintana said. “So with every mission, as we evolve, we’re chipping away and taking bigger and bigger steps toward that question of, ‘OK, we know Earths are out there. We know they’re abundant. We know they have atmospheres. How do we know if they have life on them?’”

Building on a budget

A mission like Pandora was not possible until recently, certainly not on the $20 million budget NASA devoted to the project. With Pandora, the agency took advantage of a fast-growing small satellite industry churning out spacecraft at a fraction of what it cost 10 or 15 years ago.

The Pandora spacecraft weighed approximately 716 pounds (325 kilograms) at launch and likely would have required a dedicated rocket to travel to space before SpaceX started offering shared rides on its workhorse Falcon 9 rocket. NASA did not disclose what it paid SpaceX to launch Pandora, but publicly available pricing suggests SpaceX charges a few million dollars to launch a satellite of the same size. Before the rideshare option became available, NASA would have paid tens of millions of dollars for the launch alone.

The Pandora mission is part of NASA’s Astrophysics Pioneers program, an initiative set up to solicit ideas for lower-cost astronomy missions.

“It’s been very, very challenging to try and squeeze this big amount of science into this small cost box, but that’s kind of what makes it fun, right?” Barclay told Ars. “We have to be pretty ruthless in making sure that we only fund the things we need to fund. We accept risk where we need to accept the risk, and at times we need to accept that we may need to give up performance in order to make sure that we hit the schedule and we hit the launch [schedule].”

It helps that Pandora’s 17-inch (45-centimeter) telescope comes from Lawrence Livermore National Laboratory in California, which had the technology on the shelf from a national security program. Pandora uses a small satellite platform from Blue Canyon Technologies, a Colorado company.

“There is no way we could have done Pandora 10 years ago,” Barclay said. “The small launch capabilities that come from companies like Rocket Lab and SpaceX and others meant that now the vendors of spacecraft buses and spacecraft instruments are able to push their costs down because they know that there’s a market for small missions out there. Other parts of the government are investing heavily in small spacecraft, and so that allows us on the science side to make use of that economies of scale.”

For comparison, the European Space Agency launched an exoplanet observatory about the same size as Pandora in 2019 at a cost of more than $100 million.

There are companies now looking at how to scale up production of larger satellites, too. Cheaper, heavy satellites could launch on new heavy- and super-heavy rockets like SpaceX’s Starship or Blue Origin’s New Glenn.

“I think it is an amazing capability to have for astrophysicists because science is moving fast,” Apai said. “Exoplanet science is changing. I would say every three or four years, we have breakthroughs. And the product keeps changing. We push the boundaries, and if you ever have to work with 20- or 25-year-long mission lifetimes, that really just limits progress.”

Photo of Stephen Clark

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

NASA launches new mission to get the most out of the James Webb Space Telescope Read More »

spacex-gets-fcc-permission-to-launch-another-7,500-starlink-satellites

SpaceX gets FCC permission to launch another 7,500 Starlink satellites

T-Mobile is using Starlink in the US, and the satellite operator has partnerships with carriers overseas. With today’s FCC authorization, Starlink will be able to provide both fixed and mobile service from all 15,000 second-generation satellites.

SpaceX wants to launch another 15,000 satellites

SpaceX also recently struck a $17 billion deal to buy spectrum licenses from EchoStar, which will give it 50 Mhz of mobile spectrum and reduce its reliance on cellular carriers. SpaceX has been leasing 10 MHz of spectrum from T-Mobile to provide supplemental service in the US.

Starlink is separately planning to launch yet another 15,000 satellites that are designed for mobile service. SpaceX asked the FCC to approve this plan in September 2025, saying the “new system will offer a new generation of MSS connectivity, supporting voice, texting, and high-speed data.”

Starlink requests for FCC authorization often face opposition from other satellite firms, and the application for 15,000 more satellites is no exception. Viasat filed a petition to deny the application on Monday this week.

“This proposed expansion of SpaceX’s operating authority would give it an even greater ability and incentive to foreclose other operators from accessing and using limited orbital and spectrum resources on a competitive basis,” Viasat told the FCC. “At the same time, the proposed operations would generate insurmountable interference risks for other spectrum users and the customers they serve, preclude other operators from accessing and using scarce spectral and orbital resources on an equitable basis, undermine and foreclose competition and innovation, and otherwise harm the public.”

Globalstar also filed a petition to deny, and several other satellite operators raised objections. FCC Chairman Brendan Carr has generally been a supporter of SpaceX and Elon Musk, however. Carr alleged that the Biden administration targeted Musk’s companies for “regulatory harassment,” and in his current role as chairman Carr pressured EchoStar into selling the spectrum licenses that SpaceX is now buying.

In today’s press release announcing the latest authorization, Carr said that “the FCC has given SpaceX the green light to deliver unprecedented satellite broadband capabilities, strengthen competition, and help ensure that no community is left behind.”

SpaceX gets FCC permission to launch another 7,500 Starlink satellites Read More »

nasa-orders-“controlled-medical-evacuation”-from-the-international-space-station

NASA orders “controlled medical evacuation” from the International Space Station


“The crew is highly trained, and they came to the aid of their colleague right away.”

The International Space Station orbits 260 miles (420 kilometers) above the Earth. Credit: NASA

NASA officials said Thursday they have decided to bring home four of the seven crew members on the International Space Station after one of them experienced a “medical situation” earlier this week.

The space agency has said little about the incident, and officials have not identified which crew member suffered the medical issue. James “JD” Polk, NASA’s chief health and medical officer, told reporters Thursday the crew member is “absolutely stable” but that the agency is “erring on the side of caution” with the decision to return the astronaut to Earth.

The ailing astronaut is part of the Crew-11 mission, which launched to the station August 1 and was slated to come back to Earth around February 20. Instead, the Crew-11 astronauts will depart the International Space Station (ISS) in the coming days and head for reentry and a parachute-assisted splashdown in the Pacific Ocean off the coast of California.

After discussions with our chief health and medical officer, Dr. JD Polk, and leadership across the agency, I’ve come to the decision that it’s in the best interests of our astronauts to return Crew-11 ahead of their planned departure,” NASA Administrator Jared Isaacman said Thursday.

The Crew-11 mission is led by commander Zena Cardman, 38, who is wrapping up her first mission to space. Second in command is pilot Mike Fincke, a 58-year-old astronaut on his fourth spaceflight. Japanese astronaut Kimiya Yui, 55, and Russian cosmonaut Oleg Platonov, 39, round out the crew.

Isaacman said NASA will release more information about the schedule for Crew-11’s undocking and reentry within the next 48 hours. The crew will come home aboard the same SpaceX Crew Dragon spacecraft they launched in more than five months ago. The entire crew must return to Earth together because they rely on the same Dragon spacecraft as a lifeboat.

“For over 60 years, NASA has set the standard for safety and security in crewed spaceflight,” Isaacman said. “In these endeavors, including the 25 years of continuous human presence onboard the International Space Station, the health and well-being of our astronauts is always and will be our highest priority.”

From left to right: Crew-11 mission specialist Oleg Platonov, pilot Mike Fincke, commander Zena Cardman, and mission specialist Kimiya Yui. This photo was taken during training at SpaceX’s facility in Hawthorne, California.

Credit: SpaceX

From left to right: Crew-11 mission specialist Oleg Platonov, pilot Mike Fincke, commander Zena Cardman, and mission specialist Kimiya Yui. This photo was taken during training at SpaceX’s facility in Hawthorne, California. Credit: SpaceX

Lingering risk

Polk, a physician who has served as NASA’s chief medical officer since 2016, said the agency is not ready to release details about the medical issue, citing privacy concerns. “I’m not going to speak about any particular astronaut or any particular specific diagnosis,” Polk said. “I’d ask that we still respect the privacy of the astronaut.”

Two of the Crew-11 astronauts, Cardman and Fincke, were preparing to head outside the space station on a spacewalk early Thursday. Spacewalk preps at the space station include a period of time breathing high concentrations of oxygen to purge nitrogen from the astronauts’ bloodstreams, a mitigation to avoid decompression sickness when crew members are sealed inside their spacesuits’ pure oxygen atmosphere.

Polk said whatever happened Wednesday “had nothing to do” with preparing for the spacewalk. “This was totally unrelated to any operations onboard,” he said. “It’s mostly having a medical issue in the difficult areas of microgravity with the suite of hardware that we have at our avail to complete a diagnosis.”

Yui radioed mission controllers in Houston on Wednesday afternoon requesting a private medical conference with a flight surgeon, then asked ground teams to turn on camera views inside the station ahead of the session. Medical sessions are carried out on private radio channels and are not heard on the regular communication loops between the space station and mission control. Those open loops are streamed around the clock online, but NASA removed the audio feed from YouTube soon after the crew asked for the medical conference.

NASA publicly revealed a medical concern with one of the astronauts later Wednesday afternoon, then announced late Wednesday night that officials were considering bringing the crew home early.

“I won’t go into specific details about the medical incident itself,” Polk said. “But the crew is highly trained, and they came to the aid of their colleague right away, and that’s part of why we do that training.”

The space station is stocked with medical gear and medications to help astronauts respond to emergencies. Crew members are trained to perform ultrasounds, defibrillate patients, and start IVs, among other things. The medical treatment available on the ISS is akin to what an EMT might provide in transit to a hospital, former astronaut Tom Marshburn, himself a medical doctor, said in 2021.

“We have a very robust suite of medical hardware onboard the International Space Station, but we don’t have the complete amount of hardware that I would have in the emergency department, for example, to complete the workup of a patient,” Polk said.

NASA Administrator Jared Isaacman, associate administrator Amit Kshatriya, and chief medical officer James “JD” Polk brief reporters on the status of the Crew-11 mission Thursday.

Credit: NASA/Joel Kowsky

NASA Administrator Jared Isaacman, associate administrator Amit Kshatriya, and chief medical officer James “JD” Polk brief reporters on the status of the Crew-11 mission Thursday. Credit: NASA/Joel Kowsky

Space station managers will take a few days to determine when the Dragon spacecraft will leave the station. SpaceX will dispatch a recovery ship from Southern California to sail for the splashdown zone in the Pacific, and officials will assess weather and sea conditions before selecting the best opportunity to depart the station. Like every crew return, the vessel will be staffed with medical personnel to examine the astronauts after exiting from the Dragon capsule.

“Because the astronaut is absolutely stable, this is not an emergent evacuation,” Polk said. “We’re not immediately disembarking and getting the astronaut down.”

But without a confirmed diagnosis of the astronaut’s medical issue, there’s some “lingering risk” for the astronaut’s health if they remained in orbit, Polk said. That’s why Isaacman and his deputies agreed to call an early end to the Crew-11 mission.

This was the most significant decision of Isaacman’s young tenure as NASA administrator. He was sworn in as NASA chief last month after clearing a confirmation vote in the Senate. Before taking the helm at NASA, Isaacman charted a career as an entrepreneur and private astronaut, flying to space twice on commercial missions with SpaceX.

An inevitability

After Crew-11’s departure, the space station will operate with a smaller crew of three until the arrival of SpaceX’s Crew-12 mission with a fresh team of astronauts next month. Isaacman said NASA and SpaceX are looking at options to move up the launch of Crew-12 from its current target date of February 15.

Until then, the station’s crew will consist of NASA astronaut Chris Williams and two Russian cosmonauts, who launched to the space station in November on a Russian Soyuz vehicle. Williams and his crewmates—Sergey Kud-Sverchkov and Sergey Mikayev—have their own lifeboat in the Soyuz spacecraft, so they will still have a ride home in the event of a future emergency.

The space station regularly operated with just three crew members for the first decade of its existence. The complex has been permanently staffed since 2000, sometimes with as few as two astronauts or cosmonauts. The standard crew size was raised to six in 2009, then to seven in 2020.

NASA astronaut Zena Cardman works with a spacesuit helmet inside the International Space Station’s airlock.

Credit: NASA

NASA astronaut Zena Cardman works with a spacesuit helmet inside the International Space Station’s airlock. Credit: NASA

Williams will be solely responsible for overseeing the lab’s US segment until Crew-12 arrives. He will be busy keeping up with maintenance tasks, so managers will likely defer some of the station’s scientific investigations until the complex is back to a full crew.

The early departure of Crew-11, leaving Williams as the only US astronaut aboard, also means NASA will be unable to perform spacewalks. This will mean a “slightly elevated risk” in NASA’s ability to respond to a major hardware failure that might require a spacewalk to fix, said Amit Kshatriya, the agency’s associate administrator.

NASA and the Russian space agency, Roscosmos, inked an agreement in 2022 to fly multinational crews on Dragon and Soyuz missions to ensure an American and a Russian are always at the space station. The so-called “seat swap” deal is proving worthwhile with this week’s events.

NASA has never before cut short a human spaceflight mission for medical reasons. “It’s the first time we’ve done a controlled medical evacuation from the vehicle, so that is unusual,” Kshatriya said.

The Soviet Union called an early end for an expedition to the Salyut 7 space station in 1985 after the mission’s commander fell ill in orbit.

In a sense, it is surprising that it took this long. Polk said predictive models suggested the ISS would have a medical evacuation about once every three years. It ended up taking 25 years. In that time, NASA has improved astronauts’ abilities to treat aches and pains, minor injuries, and routine illnesses.

Crews in orbit can now self-treat ailments that might have prompted a crew to return to Earth in the past. One astronaut was diagnosed with deep vein thrombosis, or a blood clot, in 2018 without requiring an early departure from the space station. Another astronaut suffered a pinched nerve in 2021 and remained in orbit for another seven months.

One of the more compelling reasons for the space station’s existence is its ability to act as a testbed for learning how to live and work off the planet. The station has served as a laboratory for studying how spaceflight affects the human body, and as a platform to test life support systems necessary for long-duration voyages to deep space.

“We are doing all this to continue to learn,” Isaacman said. “We will absolutely learn from this situation as well, to see if that informs our future on-orbit operations, whether that be on the space station or our future lunar base that we’re pursuing right now, and eventually for deep space missions to Mars.”

Photo of Stephen Clark

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

NASA orders “controlled medical evacuation” from the International Space Station Read More »