Space – Page 8

Rocket Report: Keeping up with Kuiper; New Glenn’s second flight slips

ariane 6, artemis II, astra, blue origin, Firefly Aerospace, moon, NASA, new glenn, rocket report, Security, Space, space launch system, spacex, starship, VIPER / Kelly Newman / September 26, 2025

Amazon plans to conduct two launches of Kuiper broadband satellites just days apart.

An unarmed Trident II D5 Life Extension (D5LE) missile launches from an Ohio-class ballistic missile submarine off the coast of Florida. Credit: US Navy

Welcome to Edition 8.12 of the Rocket Report! We often hear from satellite operators—from the military to venture-backed startups—about their appetite for more launch capacity. With so many rocket launches happening around the world, some might want to dismiss these statements as a corporate plea for more competition, and therefore lower prices. SpaceX is on pace to launch more than 150 times this year. China could end the year with more than 70 orbital launches. These are staggering numbers compared to global launch rates just a few years ago. But I’m convinced there’s room for more alternatives for reliable (and reusable) rockets. All of the world’s planned mega-constellations will need immense launch capacity just to get off the ground, and if successful, they’ll go into regular replacement and replenishment cycles. Throw in the still-undefined Golden Dome missile shield and many nations’ desire for a sovereign launch capability, and it’s easy to see the demand curve going up.

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.

Sharp words from Astra’s Chris Kemp. Chris Kemp, the chief executive officer of Astra, apparently didn’t get the memo about playing nice with his competitors in the launch business. Kemp made some spicy remarks at the Berkeley Space Symposium 2025 earlier this month, billed as the largest undergraduate aerospace event at the university (see video of the talk). During the speech, Kemp periodically deviated from building up Astra to hurling insults at several of his competitors in the launch industry, Ars reports. To be fair to Kemp, some of his criticisms are not without a kernel of truth. But they are uncharacteristically rough all the same, especially given Astra’s uneven-at-best launch record and financial solvency to date.

Wait, what?! … Kemp is generally laudatory in his comments about SpaceX, but his most crass statement took aim at the quality of life of SpaceX employees at Starbase, Texas. He said life at Astra is “more fun than SpaceX because we’re not on the border of Mexico where they’ll chop your head off if you accidentally take a left turn.” For the record, no SpaceX employees have been beheaded. “And you don’t have to live in a trailer. And we don’t make you work six and a half days a week, 12 hours a day.” Kemp also accused Firefly Aerospace of sending Astra “garbage” rocket engines as part of the companies’ partnership on propulsion for Astra’s next-generation rocket.

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A step forward for Europe’s reusable rocket program. No one could accuse the European Space Agency and its various contractors of moving swiftly when it comes to the development of reusable rockets. However, it appears that Europe is finally making some credible progress, Ars reports. Last week, the France-based ArianeGroup aerospace company announced that it completed the integration of the Themis vehicle, a prototype rocket that will test various landing technologies, on a launch pad in Sweden. Low-altitude hop tests, a precursor for developing a rocket’s first stage that can vertically land after an orbital launch, could start late this year or early next.

Hopping into the future … “This milestone marks the beginning of the ‘combined tests,’ during which the interface between Themis and the launch pad’s mechanical, electrical, and fluid systems will be thoroughly trialed, with the aim of completing a test under cryogenic conditions,” ArianeGroup said. This particular rocket will likely undergo only short hops, initially about 100 meters. A follow-up vehicle, Themis T1E, is intended to fly medium-altitude tests at a later date. Some of the learnings from these prototypes will feed into a smaller, reusable rocket intended to lift 500 kilograms to low-Earth orbit. This is under development by MaiaSpace, a subsidiary of ArianeGroup. Eventually, the European Space Agency would like to use technology developed as part of Themis to develop a new line of reusable rockets that will succeed the Ariane 6 rocket.

Navy conducts Trident missile drills. The US Navy carried out four scheduled missile tests of a nuclear-capable weapons system off the coast of Florida within the last week, Defense News reports. The service’s Strategic Systems Programs conducted flights of unarmed Trident II D5 Life Extension missiles from a submerged Ohio-class ballistic missile submarine from September 17 to September 21 as part of an ongoing scheduled event meant to test the reliability of the system. “The missile tests were not conducted in response to any ongoing world events,” a Navy release said.

Secret with high visibility … The Navy periodically performs these Trident missile tests off the coasts of Florida and California, taking advantage of support infrastructure and range support from the two busiest US spaceports. The military doesn’t announce the exact timing of the tests, but warnings issued for pilots to stay out of the area give a general idea of when they might occur. One of the launch events Sunday was visible from Puerto Rico, illuminating the night sky in photos published on social media. The missiles fell in the Atlantic Ocean as intended, the Navy said. The Trident II D5 missiles were developed in the 1980s and are expected to remain in service on the Navy’s ballistic missile submarines into the 2040s. The Trident system is one leg of the US military’s nuclear triad, alongside land-based Minuteman ballistic missiles and nuclear-capable strategic bombers. (submitted by EllPeaTea)

Firefly plans for Alpha’s return to flight. Firefly Aerospace expects to resume Alpha launches in the “coming weeks,” with two flights planned before the end of the year, Space News reports. These will be the first flights of Firefly’s one-ton-class Alpha rocket since a failure in April destroyed a Lockheed Martin tech demo satellite after liftoff from California. In a quarterly earnings call, Firefly shared a photo showing its next two Alpha rockets awaiting shipment from the company’s Texas factory.

Righting the ship … These next two launches really need to go well for Firefly. The Alpha rocket has, at best, a mixed record with only two fully successful flights in six attempts. Two other missions put their payloads into off-target orbits, and two Alpha launches failed to reach orbit at all. Firefly went public on the NASDAQ stock exchange last month, raising nearly $900 million in the initial public offering to help fund the company’s future programs, namely the medium-lift Eclipse rocket developed in partnership with Northrop Grumman. There’s a lot to like about Firefly. The company achieved the first fully successful landing of a commercial spacecraft on the Moon in March. NASA has selected Firefly for three more commercial landings on the Moon, and Firefly reported this week it has an agreement with an unnamed commercial customer for an additional dedicated mission. But the Alpha program hasn’t had the same level of success. We’ll see if Firefly can get the rocket on track soon. (submitted by EllPeaTea)

Avio wins contract to launch “extra-European” mission. Italian rocket builder Avio has signed a launch services agreement with US-based launch aggregator SpaceLaunch for a Vega C launch carrying an Earth observation satellite for an “extra-European institutional customer” in 2027, European Spaceflight reports. Avio announced that it had secured the launch contract on September 18. According to the company, the contract was awarded through an open international competition, with Vega C chosen for its “versatility and cost-effectiveness.” While Avio did not reveal the identity of the “extra-European” customer, it said that it would do so later this year.

Plenty of peculiarities … There are several questions to unpack here, and Andrew Parsonson of European Spaceflight goes through them all. Presumably, extra-European means the customer is based outside of Europe. Avio’s statement suggests we’ll find out the answer to that question soon. Details about the US-based launch broker SpaceLaunch are harder to find. SpaceLaunch appears to have been founded in January 2025 by two former Firefly Aerospace employees with a combined 40 years of experience in the industry. On its website, the company claims to provide end-to-end satellite launch integration, mission management, and launch procurement services with a “portfolio of launch vehicle capacity around the globe.” SpaceLaunch boasts it has supported the launch of more than 150 satellites on 12 different launch vehicles. However, according to public records, it does not appear that the company itself has supported a single launch. Instead, the claim seems to credit SpaceLaunch with launches that were actually carried out during the two founders’ previous tenures at Spaceflight, Firefly Aerospace, Northrop Grumman, and the US Air Force. (submitted by EllPeaTea)

Falcon 9 launches three missions for NASA and NOAA. Scientists loaded three missions worth nearly $1.6 billion on a SpaceX Falcon 9 rocket for launch Wednesday, toward an orbit nearly a million miles from Earth, to measure the supersonic stream of charged particles emanating from the Sun, Ars reports. One of the missions, from the National Oceanic and Atmospheric Administration (NOAA), will beam back real-time observations of the solar wind to provide advance warning of geomagnetic storms that could affect power grids, radio communications, GPS navigation, air travel, and satellite operations. The other two missions come from NASA, with research objectives that include studying the boundary between the Solar System and interstellar space and observing the rarely seen outermost layer of our own planet’s atmosphere.

Immense value …All three spacecraft will operate in orbit around the L1 Lagrange point, a gravitational balance point located more than 900,000 miles (1.5 million kilometers) from Earth. Bundling these three missions onto the same rocket saved at least tens of millions of dollars in launch costs. Normally, they would have needed three different rockets. Rideshare missions to low-Earth orbit are becoming more common, but spacecraft departing for more distant destinations like the L1 Lagrange point are rare. Getting all three missions on the same launch required extensive planning, a stroke of luck, and fortuitous timing. “This is the ultimate cosmic carpool,” said Joe Westlake, director of NASA’s heliophysics division. “These three missions heading out to the Sun-Earth L1 point riding along together provide immense value for the American taxpayer.”

US officials concerned about China mastering reusable launch. SpaceX’s dominance in reusable rocketry is one of the most important advantages the United States has over China as competition between the two nations extends into space, US Space Force officials said Monday. But several Chinese companies are getting close to fielding their own reusable rockets, Ars reports. “It’s concerning how fast they’re going,” said Brig. Gen. Brian Sidari, the Space Force’s deputy chief of space operations for intelligence. “I’m concerned about when the Chinese figure out how to do reusable lift that allows them to put more capability on orbit at a quicker cadence than currently exists.”

By the numbers … China has used 14 different types of rockets on its 56 orbital-class missions this year, and none have flown more than 11 times. Eight US rocket types have cumulatively flown 145 times, with 122 of those using SpaceX’s workhorse Falcon 9. Without a reusable rocket, China must maintain more rocket companies to sustain a launch rate of just one-third to one-half that of the United States. This contrasts with the situation just four years ago, when China outpaced the United States in orbital rocket launches. The growth in US launches has been a direct result of SpaceX’s improvements to launch at a higher rate, an achievement primarily driven by the recovery and reuse of Falcon 9 boosters and payload fairings.

Atlas V launches more Kuiper satellites. Roughly an hour past sunrise Thursday, an Atlas V rocket from United Launch Alliance took flight from Cape Canaveral Space Force Station, Florida. Onboard the rocket, flying in its most powerful configuration, were the next 27 Project Kuiper broadband satellites from Amazon, Spaceflight Now reports. This is the third batch of production satellites launched by ULA and the fifth overall for the growing low-Earth orbit constellation. The Atlas V rocket released the 27 Kuiper satellites about 280 miles (450 kilometers) above Earth. The satellites will use onboard propulsion to boost themselves to their assigned orbit at 392 miles (630 kilometers).

Another Kuiper launch on tap … With this deployment, Amazon now has 129 satellites in orbit. This is a small fraction of the network’s planned total of 3,232 satellites, but Amazon has enjoyed a steep ramp-up in the Kuiper launch cadence as the company’s satellite assembly line in Kirkland, Washington, continues churning out spacecraft. Another 24 Kuiper satellites are slated to launch September 30 on a SpaceX Falcon 9 rocket, and Amazon has delivered enough satellites to Florida for an additional launch later this fall. (submitted by EllPeaTea)

German military will fly with Ariane 6. Airbus Defense and Space has awarded Arianespace a contract to launch a pair of SATCOMBw-3 communications satellites for the German Armed Forces, European Spaceflight reports. Airbus is the prime contractor for the nearly $2.5 billion (2.1 billion euro) SATCOMBw-3 program, which will take over from the two-satellite SATCOMBw-2 constellation currently providing secure communications for the German military. Arianespace announced Wednesday that it had been awarded the contract to launch the satellites aboard two Ariane 6 rockets. “By signing this new strategic contract for the German Armed Forces, Arianespace accomplishes its core mission of guaranteeing autonomous access to space for European sovereign satellites,” said Arianespace CEO David Cavaillolès.

Running home to Europe … The chief goal of the Ariane 6 program is to provide Europe with independent access to space, something many European governments see as a strategic requirement. Several European military, national security, and scientific satellites have launched on SpaceX Falcon 9 rockets in the last few years as officials waited for the debut of the Ariane 6 rocket. With three successful Ariane 6 flights now in the books, European customers seem to now have the confidence to commit to flying their satellites on Ariane 6. (submitted by EllPeaTea)

Artemis II launch targeted for February. NASA is pressing ahead with preparations for the first launch of humans beyond low-Earth orbit in more than five decades, and officials said Tuesday that the Artemis II mission could take flight early next year, Ars reports. Although work remains to be done, the space agency is now pushing toward a launch window that opens on February 5, 2026, officials said during a news conference on Tuesday at Johnson Space Center. The Artemis II mission represents a major step forward for NASA and seeks to send four astronauts—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—around the Moon and back. The 10-day mission will be the first time astronauts have left low-Earth orbit since the Apollo 17 mission in December 1972.

Orion named Integrity … The first astronauts set to fly to the Moon in more than 50 years will do so in Integrity, Ars reports. NASA’s Artemis II crew revealed Integrity as the name of their Orion spacecraft during a news conference on Wednesday at the Johnson Space Center in Houston. “We thought, as a crew, we need to name this spacecraft. We need to have a name for the Orion spacecraft that we’re going to ride this magical mission on,” said Wiseman, commander of the Artemis II mission.

FAA reveals new Starship trajectories. Sometime soon, perhaps next year, SpaceX will attempt to fly one of its enormous Starship rockets from low-Earth orbit back to its launch pad in South Texas. A successful return and catch at the launch tower would demonstrate a key capability underpinning Elon Musk’s hopes for a fully reusable rocket. In order for this to happen, SpaceX must overcome the tyranny of geography. A new document released by the Federal Aviation Administration shows the narrow corridors Starship will fly to space and back when SpaceX tries to recover them, Ars reports.

Flying over people … It was always evident that flying a Starship from low-Earth orbit back to Starbase would require the rocket to fly over Mexico and portions of South Texas. The rocket launches to the east over the Gulf of Mexico, so it must approach Starbase from the west when it comes in for a landing. The new maps show SpaceX will launch Starships to the southeast over the Gulf and the Caribbean Sea, and directly over Jamaica, or to the northeast over the Gulf and the Florida peninsula. On reentry, the ship will fly over Baja California and Mexico’s interior near the cities of Hermosillo and Chihuahua, each with a population of roughly a million people. The trajectory would bring Starship well north of the Monterrey metro area and its 5.3 million residents, then over the Rio Grande Valley near the Texas cities of McAllen and Brownsville.

New Glenn’s second flight at least a month away. The second launch of Blue Origin’s New Glenn rocket, carrying a NASA smallsat mission to Mars, is now expected in late October or early November, Space News reports. Tim Dunn, NASA’s senior launch director at Kennedy Space Center, provided an updated schedule for the second flight of New Glenn in comments after a NASA-sponsored launch on a Falcon 9 rocket Wednesday. Previously, the official schedule from NASA showed the launch date as no earlier than September 29.

No surprise … It was already apparent that this launch wouldn’t happen September 29. Blue Origin has test-fired the second stage for the upcoming flight of the New Glenn rocket but hasn’t rolled the first stage to the launch pad for its static fire. Seeing the rocket emerge from Blue’s factory in Florida will be an indication that the launch date is finally near. Blue Origin will launch NASA’s ESCAPADE mission, a pair of small satellites to study how the solar wind interacts with the Martian upper atmosphere.

Blue Origin will launch a NASA rover to the Moon. NASA has awarded Blue Origin a task order worth up to $190 million to deliver its Volatiles Investigating Polar Exploration Rover (VIPER) to the Moon’s surface, Aviation Week & Space Technology reports. Blue Origin, one of 13 currently active Commercial Lunar Payload Services (CLPS) providers, submitted the only bid to carry VIPER to the Moon after NASA requested offers from industry last month. NASA canceled the VIPER mission last year, citing cost overruns with the rover and delays in its planned ride to the Moon aboard a lander provided by Astrobotic. But engineers had already completed assembly of the rover, and scientists protested NASA’s decision to terminate the mission.

Some caveats … Blue Origin will deliver VIPER to a location near the Moon’s south pole in late 2027 using a robotic Blue Moon MK1 lander, a massive craft larger than the Apollo lunar landing module. The company’s first Blue Moon MK1 lander is scheduled to fly to the Moon next year. NASA’s contract for the VIPER delivery calls for Blue Origin to design accommodations for the rover on the Blue Moon lander. The agency said it will decide whether to proceed with the actual launch on a New Glenn rocket and delivery of VIPER to the Moon based partially on the outcome of the first Blue Moon test flight next year.

Next three launches

Sept. 26: Long March 4C | Unknown Payload | Jiuquan Satellite Launch Center, China | 19: 20 UTC

Sept. 27: Long March 6A | Unknown Payload | Taiyuan Satellite Launch Center, China | 12: 39 UTC

Sept. 28: Falcon 9 | Starlink 11-20 | Vandenberg Space Force Base, California | 23: 32 UTC

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: Keeping up with Kuiper; New Glenn’s second flight slips Read More »

Sierra’s Dream Chaser is starting to resemble a nightmare

Dream Chaser, iss, NASA, Sierra space, Space / DJ Henderson / September 26, 2025

However, in its news release, NASA said it is no longer obligated to a specific number of resupply missions.

Chasing those defense dollars

In its own statement on the announcement, Sierra Space said the new approach will provide it with more “flexibility” as the company seeks to attract national defense contracts.

“Dream Chaser represents the future of versatile space transportation and mission flexibility,” said Fatih Ozmen, executive chair at Sierra Space, in the statement. “This transition provides unique capabilities to meet the needs of diverse mission profiles, including emerging and existential threats and national security priorities that align with our acceleration into the Defense Tech market.”

Although the NASA news release does not detail the space agency’s concerns about allowing Dream Chaser to approach the station, sources have told Ars the space agency has yet to certify the spacecraft’s propulsion system. The spacecraft is powered by more than two dozen small rocket engines, each capable of operating at three discrete levels of thrust for fine control or more significant orbit adjustments. Certification is a necessary precursor for allowing a vehicle to approach the orbiting laboratory.

Sierra said it is now targeting a “late 2026” debut for Dream Chaser, but that date is far enough in the future that it is likely subject to Berger’s Law, and probably means no earlier than 2027. This all but precludes a cargo mission to the International Space Station, which is scheduled to be deorbited in 2030, and presently has two more-than-capable supply vehicles with SpaceX’s Dragon and Northrop’s new, larger Cygnus.

It is possible that Dream Chaser could serve a future market of commercial space stations in low-Earth orbit, but to do so, Sierra will have to get the vehicle flying reliably, frequently, and at a relatively low cost to compete with Dragon and Cygnus. Those are big hurdles for a spacecraft that is now many years behind schedule and no longer has any guaranteed government missions.

Sierra’s Dream Chaser is starting to resemble a nightmare Read More »

Astra’s Chris Kemp woke up one recent morning and chose violence

astra, blue origin, Chris kemp, firefly, rocket, Space, spacex / Kelly Newman / September 25, 2025

SpaceX

Kemp generally praises SpaceX for leading the way with iterative design and founder Elon Musk’s willingness to fail publicly in order to move fast. However, in seeking to appeal to interns, he suggested that Astra offered a better working environment than SpaceX’s Starbase factory in South Texas.

“It’s more fun than SpaceX, because we’re not on the border of Mexico where they’ll chop your head off if you accidentally take a left turn,” he said. “And you don’t have to live in a trailer. And we don’t make you work six and a half days a week, 12 hours a day. It’s appreciated if you do, but not required.”

For the record, no SpaceX interns have been beheaded. And honestly, Chris, that is just a really crass thing to say.

Rocket Lab

Kemp’s longest and oldest rival in the launch industry is Rocket Lab and its founder, Peter Beck. This was especially apparent in a recent documentary that covered the rise of both Astra and Rocket Lab, called Wild Wild West. Kemp did not take any direct shots at Beck during his Berkeley speech.

However, in the late 2010s both Astra and Rocket Lab were racing to develop a small-lift rocket capable of lifting dozens to a few hundred kilograms to orbit, Rocket 3 and Electron. In hindsight, Kemp said, these rockets were not large enough to serve the market for satellites. There just were not enough CubeSats to go around.

“That little rocket is too small,” Kemp said in Berkeley about Rocket 3. “And so is Electron.”

A size comparison between Rocket 3, right, and Rocket 4. Credit: Astra

Electron may be small, but it has launched more than 70 times. It could generate as much as $200 million in revenue for Rocket Lab this year. And it has provided an excellent test bed for Rocket Lab as it seeks to build the much larger Neutron vehicle, with a reusable first stage.

Overall, Kemp’s talk is insightful, offering thoughtful commentary on Astra’s history and vision for the future. The company is a startup again, now focusing on building a mobile, tactical rocket that could serve national defense interests. Instead of focusing on reuse, the company wants to build a lot of rockets cheaply. It has built a large factory in California to accomplish this.

Also, after nine years in the launch industry, Kemp seems to have finally learned an important lesson about rockets: reliability matters.

“Rocket 3 was the cowboy rocket,” he said, noting the company has worked hard to improve its practices and manufacturing to build vehicles that won’t fail anymore. “The big idea was, you can’t get to scale without reliability.”

Astra’s Chris Kemp woke up one recent morning and chose violence Read More »

The crew of Artemis II will fly on Integrity during mission to the Moon

artemis II, Canadian Space Agency, Christina Koch, Integrity, Jeremy Hansen, moon, name, NASA, orion spacecraft, Reid Wiseman, Space, Space exploration, space history, victor glover / 9u50fv / September 25, 2025

Three men and one woman, all in orange pressure suits, stand in front of a silver-coated space capsule in an overhead view — The Artemis II crew (from the right): Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen pose in front of their Orion spacecraft, which they have named *Integrity*. Credit: NASA/Rad Sinyak

Whole and undivided

Ultimately, Integrity was inspired by something one of their instructors said while on a team-building trip to Iceland.

“He coined this for us, and we held on to it,” said Hansen, who, unlike his NASA crewmates, is a Canadian Space Agency astronaut. “It was this idea that you’re not a person who has integrity, you’re a person who strives to be in integrity. Sometimes you’re out of integrity, and sometimes you’re in your integrity. That was profound for all of us.”

For Glover, it boiled down to the definition.

“The Latin root means ‘whole.’ It’s a very simple concept, and it’s about being whole. This crew comes together as pieces—the four of us and our backups—but the six of us make up a whole team. The vehicle, the pieces come together and make up a whole spacecraft,” he said.

“What people anecdotally say is that integrity is what you do when no one’s watching. That, and truth, honor, and integrity matter,” said Glover. “There are so many layers to that name and what it means and what it inspires.”

Integrating Integrity

Integrity is one of the tenets of the Astronaut Code of Professional Responsibility. It is also one of the Canadian Space Agency’s core values.

“We all strive to be in integrity all of the time, but integrity isn’t an absolute that you either have or don’t have,” said Koch. “So this helps us give grace and build trust with each other.”

“I hope that people hearing [the name] over the 10 days of the mission appreciate all of the different things that it means, from a whole ship, a whole crew, to a wholeness and wellness that I think humanity just needs. We need to hear more of that togetherness and wholeness,” said Glover.

Three men and a woman, all in blue flight suits, pose for a photograph backdropped by images of the moon and Mars — NASA’s Artemis II crew (from the left) Victor Glover, Reid Wiseman, Christina Koch, and Jeremy Hansen at the Johnson Space Center in Houston on Wednesday, September 24, 2025. Credit: collectSPACE.com

Now that it has been announced, next up is for Integrity to be used as the crew’s possible call sign.

“We waited to make sure the whole enterprise was ready for us to announce it before we even used it,” said Glover. “I think we’ll start using it in sims: ‘Houston, Integrity. Integrity, Houston.’ That’s the plan.

“But if someone doesn’t like that, then we won’t, and we can say Orion,” he said.

The crew of Artemis II will fly on Integrity during mission to the Moon Read More »

NASA targeting early February for Artemis II mission to the Moon

artemis II, NASA, sls rocket, Space / Shannon Garcia / September 23, 2025

NASA is pressing ahead with preparations for the first launch of humans beyond low-Earth orbit in more than five decades, and officials said Tuesday that the Artemis II mission could take flight early next year.

Although work remains to be done, the space agency is now pushing toward a launch window that opens on February 5, 2026, officials said during a news conference on Tuesday at Johnson Space Center.

The Artemis II mission represents a major step forward for NASA and seeks to send four astronauts—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—around the Moon and back. The 10-day mission will be the first time astronauts have left low-Earth orbit since the Apollo 17 mission in December 1972.

Hardware nearing readiness

The mission’s Space Launch System rocket has been stacked and declared ready for flight. The Orion spacecraft is in the final stages of preparation and will be attached to the top of the rocket later this year.

Early next year, the combined stack will roll out to the vehicle’s launch site at Kennedy Space Center, said Charlie Blackwell-Thompson, Artemis launch director. At the pad, the rocket and spacecraft will be connected to ground systems, and after about two weeks, it will undergo a “wet dress rehearsal.”

During this fueling test, the first and second stages of the rocket will be fully loaded with liquid hydrogen and oxygen, and the countdown will be taken down to T-29 seconds. After this test, the rocket will be de-tanked and turned around for launch.

Due to the orbits of Earth and the Moon and various constraints on the mission, there are launch windows each month that last four to eight days. In February, that window opens on the fifth, and it would be an evening launch, Blackwell-Thompson said.

After launching, the Orion spacecraft will separate from the upper stage of the SLS rocket a little more than three hours after liftoff. It will spend about 24 hours in orbit around Earth, during which time the four astronauts on board will perform various checkouts to ensure the vehicle’s life support systems, thrusters, and other equipment are performing nominally.

NASA targeting early February for Artemis II mission to the Moon Read More »

US intel officials “concerned” China will soon master reusable launch

china, launch, military space, Pentagon, reusable rockets, Space, spacex, US Space Force / DJ Henderson / September 23, 2025

“They have to have on-orbit refueling because they don’t access space as frequently as we do.”

File photo of a reusable Falcon 9 booster moments before landing on a recent flight at Cape Canaveral Space Force Station, Florida. Credit: SpaceX

SpaceX scored its 500th landing of a Falcon 9 first stage booster on an otherwise routine flight earlier this month, sending 28 Starlink communications satellites into orbit. Barring any unforeseen problems, SpaceX will mark the 500th re-flight of a Falcon first stage later this year.

A handful of other US companies, including Blue Origin, Rocket Lab, Relativity Space, and Stoke Space, are on the way to replicating or building on SpaceX’s achievements in recycling rocket parts. These launch providers are racing a medley of Chinese rocket builders to become the second company to land and reuse a first stage booster.

But it will be many years—perhaps a decade or longer—until anyone else matches the kinds of numbers SpaceX is racking up in the realm of reusable rockets. SpaceX’s dominance in this field is one of the most important advantages the United States has over China as competition between the two nations extends into space, US Space Force officials said Monday.

“It’s concerning how fast they’re going,” said Brig. Gen. Brian Sidari, the Space Force’s deputy chief of space operations for intelligence. “I’m concerned about when the Chinese figure out how to do reusable lift that allows them to put more capability on orbit at a quicker cadence than currently exists.”

Taking advantage

China has used 14 different types of rockets on its 56 orbital-class missions this year, and none have flown more than 11 times. Eight US rocket types have cumulatively flown 142 times, with 120 of those using SpaceX’s workhorse Falcon 9. Without a reusable rocket, China must maintain more rocket companies to sustain a launch rate of just one-third to one-half that of the United States.

This contrasts with the situation just four years ago, when China outpaced the United States in orbital rocket launches. The growth in US launches has been a direct result of SpaceX’s improvements to launch at a higher rate, an achievement primarily driven by the recovery and reuse of Falcon 9 boosters and payload fairings. Last month, SpaceX flew one of its Falcon 9 boosters for the 30th time and set a record at nine days for the shortest turnaround between flights of the same booster in March.

“They’ve put more satellites on orbit,” Sidari said, referring to China. “They still do not compare to the US, but it is concerning once they figure out that reusable lift. The other one is the megaconstellations. They’ve seen how the megaconstellations provide capability to the US joint force and the West, and they’re mimicking it. So, that does concern me, how fast they’re going, but we’ll see. It’s easier said than done. They do have to figure it out, and they do have some challenges that we haven’t dealt with.”

One of those challenges is China’s continued reliance on expendable rockets. This has made it more important for China to make “game-changing” advancements in other areas, according to Chief Master Sgt. Ron Lerch, the Space Force’s senior enlisted advisor for intelligence.

Lerch pointed to the recent refueling of a Chinese satellite in geosynchronous orbit, more than 22,000 miles (nearly 36,000 kilometers) over the equator. China’s Shijian-21 and Shijian-25 satellites, known as SJ-21 and SJ-25 for short, came together on July 2 and have remained together ever since, according to open source orbital tracking data.

No one has refueled a spacecraft so far from Earth before. SJ-25 appears to be the refueler for SJ-21, a Chinese craft capable of latching onto other satellites and towing them to different orbits. Chinese officials say SJ-21 is testing “space debris mitigation” techniques, but US officials have raised concerns that China is testing a counter-space weapon that could sidle up to an American or allied satellite and take control of it.

Lerch said satellite refueling is more important to China than it is to the United States. With refueling, China can achieve a different kind of reuse in space while the government waits for reusable rockets to enter service.

“They have to have on-orbit refueling as a capability because they don’t access space as frequently as we do,” Lerch said Monday at the Air Force Association’s Air, Space, and Cyber Conference. “When it comes to replenishing our toolkit, getting more capability (on orbit) and reconstitution, having reusable launch is what affords us that ability, and the Chinese don’t have that. So, pursuing things like refueling on orbit, it is game-changing for them.”

The Nebula 1 rocket from China’s Deep Blue Aerospace just before attempting to land on a vertical takeoff, vertical landing test flight last year. Credit: Deep Blue Aerospace

SpaceX’s rapid-fire cadence is pivotal for a number of US national security programs. The Pentagon uses SpaceX’s Starlink satellites, which take up most of the Falcon 9 launch capacity, for commercial-grade global connectivity. SpaceX’s Starshield satellite platform, derived from the Starlink design, has launched in stacks of up to 22 spacecraft on a single Falcon 9 to deploy a constellation of hundreds of all-seeing spy satellites for the National Reconnaissance Office. The most recent batch of these Starshield satellites launched Monday.

Cheaper, readily available launch services will also be critical to the Pentagon’s aspirations to construct a missile shield to defend against attacks on the US homeland. Sensors and interceptors for the military’s planned Golden Dome missile defense system will be scattered throughout low-Earth orbit.

SpaceX’s inventory of Falcon 9 rockets has enabled the Space Force to move closer to realizing on-demand launch services. On two occasions within the last year, the Space Force asked SpaceX to launch a GPS navigation satellite with just a few months of lead time to prepare for the mission. With a fleet of reusable rockets at the ready, SpaceX delivered.

Meanwhile, China recently started deploying its own satellite megaconstellations. Chinese officials claim these new satellite networks will be used for Internet connectivity. That may be so, but Pentagon officials worry China can use them for other purposes, just as the Space Force is doing with Starlink, Starshield, and other programs.

Copycats in space

Lerch mentioned two other recent Chinese actions in space that have his attention. One is the launch of five Tongxin Jishu Shiyan (TJS) satellites, or what China calls communication technology test satellites, into geosynchronous orbit since January, something Lerch called “highly unusual.” Chinese authorities released (rather interesting) patches for four of these TJS satellites, suggesting they are part of a family of spacecraft.

“More importantly, these spacecraft sitting at GEO (geosynchronous orbit) are not supposed to be sliding all around the GEO belt,” Lerch said. “But the history of these experimental spacecraft have shown that that’s exactly what they do, which is very uncharacteristic for a system that’s supposed to be providing satellite communications.”

US officials believe China uses at least some of the TJS satellites for missile warning or spy missions. TJS satellites filling the role of a reconnaissance mission might have enormous umbrella-like reflectors to try to pick up communication signals transmitted by foreign forces, such as those of the United States.

A modified Long March 7 rocket carrying the Yaogan 45 satellite lifts off from the Wenchang Space Launch Site on September 9, 2025, in Wenchang, Hainan Province of China. Credit: Luo Yunfei/China News Service/VCG via Getty Images

China also launched a spy satellite called Yaogan 45 into a peculiar orbit earlier this month. (Yaogan is a cover name for China’s military spy satellites.) Yaogan 45 is a remote sensing platform, Lerch said, but it’s flying much higher than a typical Earth-imaging satellite. Instead of orbiting a few hundred miles above the Earth, Yaogan 45 circles at an altitude of some 4,660 miles (7,500 kilometers).

“That, alone, is very interesting,” Lerch said.

But US intelligence officials believe there’s more to the story. China launched the country’s first two communications satellites into a so-called medium-Earth orbit, or MEO, last year. These satellites are the first in a network called Smart Skynet.

“It looks like a year ago they started to put the infrastructure at MEO to be able to move around data, and then a year later, the Chinese are now putting remote sensing capability at MEO as well,” Lerch said. “That’s interesting, and that starts to paint a picture that they value remote sensing to the point where they want resiliency in layers of it.”

China launched a satellite named Yaogan 41 into geosynchronous orbit in 2023 with a sharp-eyed telescope with enough sensitivity to track car-sized objects on the ground and at sea. From its perch in geosynchronous orbit, Yaogan 41 will provide China’s military with a continuous view of the Indo-Pacific region. A single satellite in low-Earth orbit offers only fleeting views.

Some of this may sound familiar if you follow what the US military and the National Reconnaissance Office are doing with their satellites.

“Our military power has served as a bit of an open book, and adversaries have watched and observed us for years,” said Lt. Gen. Max Pearson, the Air Force’s deputy chief of staff for intelligence.

China’s military has “observed how we fight, the techniques we use, the weapons systems we have,” Pearson said. “When you combine that with intellectual property theft that has fueled a lot of their modernization, they have deliberately developed and modernized to counter our American way of war.”

US intel officials “concerned” China will soon master reusable launch Read More »

Starship will soon fly over towns and cities, but will dodge the biggest ones

cape canaveral, Commercial space, Federal Aviation Administration, Kennedy Space Center, launch, methane, NASA, Space, space force, spacex, starship / Mike M. / September 20, 2025

Starship’s next chapter will involve launching over Florida and returning over Mexico.

SpaceX’s Starship vehicle is encased in plasma as it reenters the atmosphere over the Indian Ocean on its most recent test flight in August. Credit: SpaceX

Some time soon, perhaps next year, SpaceX will attempt to fly one of its enormous Starship rockets from low-Earth orbit back to its launch pad in South Texas. A successful return and catch at the launch tower would demonstrate a key capability underpinning Elon Musk’s hopes for a fully reusable rocket.

In order for this to happen, SpaceX must overcome the tyranny of geography. Unlike launches over the open ocean from Cape Canaveral, Florida, rockets departing from South Texas must follow a narrow corridor to steer clear of downrange land masses.

All 10 of the rocket’s test flights so far have launched from Texas toward splashdowns in the Indian or Pacific Oceans. On these trajectories, the rocket never completes a full orbit around the Earth, but instead flies an arcing path through space before gravity pulls it back into the atmosphere.

If Starship’s next two test flights go well, SpaceX will likely attempt to send the soon-to-debut third-generation version of the rocket all the way to low-Earth orbit. The Starship V3 vehicle will measure 171 feet (52.1 meters) tall, a few feet more than Starship’s current configuration. The entire rocket, including its Super Heavy booster, will have a height of 408 feet (124.4 meters).

Starship, made of stainless steel, is designed for full reusability. SpaceX has already recovered and reflown Super Heavy boosters, but won’t be ready to recover the rocket’s Starship upper stage until next year, at the soonest.

That’s one of the next major milestones in Starship’s development after achieving orbital flight. SpaceX will attempt to bring the ship home to be caught back at the launch site by the launch tower at Starbase, Texas, located on the southernmost section of the Texas Gulf Coast near the US-Mexico border.

It was always evident that flying a Starship from low-Earth orbit back to Starbase would require the rocket to fly over Mexico and portions of South Texas. The rocket launches to the east over the Gulf of Mexico, so it must approach Starbase from the west when it comes in for a landing.

New maps published by the Federal Aviation Administration show where the first Starships returning to Texas may fly when they streak through the atmosphere.

Paths to and from orbit

The FAA released a document Friday describing SpaceX’s request to update its government license for additional Starship launch and reentry trajectories. The document is a draft version of a “tiered environmental assessment” examining the potential for significant environmental impacts from the new launch and reentry flight paths.

The federal regulator said it is evaluating potential impacts in aviation emissions and air quality, noise and noise-compatible land use, hazardous materials, and socioeconomics. The FAA concluded the new flight paths proposed by SpaceX would have “no significant impacts” in any of these categories.

SpaceX’s Starship rocket shortly before splashing into the Indian Ocean in August. Credit: SpaceX

The environmental review is just one of several factors the FAA considers when deciding whether to approve a new commercial launch or reentry license. According to the FAA, the other factors are public safety issues (such as overflight of populated areas and payload contents), national security or foreign policy concerns, and insurance requirements.

The FAA didn’t make a statement on any public safety and foreign policy concerns with SpaceX’s new trajectories, but both issues may come into play as the company seeks approval to fly Starship over Mexican towns and cities uprange from Starbase.

The regulator’s licensing rules state that a commercial launch and reentry should each pose no greater than a 1 in 10,000 chance of harming or killing a member of the public not involved in the mission. The risk to any individual should not exceed 1 in 1 million.

So, what’s the danger? If something on Starship fails, it could disintegrate in the atmosphere. Surviving debris would rain down to the ground, as it did over the Turks and Caicos Islands after two Starship launch failures earlier this year. Two other Starship flights ran into problems once in space, tumbling out of control and breaking apart during reentry over the Indian Ocean.

The most recent Starship flight last month was more successful, with the ship reaching its target in the Indian Ocean for a pinpoint splashdown. The splashdown had an error of just 3 meters (10 feet), giving SpaceX confidence in returning future Starships to land.

This map shows Starship’s proposed reentry corridor. Credit: Federal Aviation Administration

One way of minimizing the risk to the public is to avoid flying over large metropolitan areas, and that’s exactly what SpaceX and the FAA are proposing to do, at least for the initial attempts to bring Starship home from orbit. A map of a “notional” Starship reentry flight path shows the vehicle beginning its reentry over the Pacific Ocean, then passing over Baja California and soaring above Mexico’s interior near the cities of Hermosillo and Chihuahua, each with a population of roughly a million people.

The trajectory would bring Starship well north of the Monterrey metro area and its 5.3 million residents, then over the Rio Grande Valley near the Texas cities of McAllen and Brownsville. During the final segment of Starship’s return trajectory, the vehicle will begin a vertical descent over Starbase before a final landing burn to slow it down for the launch pad’s arms to catch it in midair.

In addition to Monterrey, the proposed flight path dodges overflights of major US cities like San Diego, Phoenix, and El Paso, Texas.

Let’s back up

Setting up for this reentry trajectory requires SpaceX to launch Starship into an orbit with exactly the right inclination, or angle to the equator. There are safety constraints for SpaceX and the FAA to consider here, too.

All of the Starship test flights to date have launched toward the east, threading between South Florida and Cuba, south of the Bahamas, and north of Puerto Rico before heading over the North Atlantic Ocean. For Starship to target just the right orbit to set up for reentry, the rocket must fly in a slightly different direction over the Gulf.

Another map released by the FAA shows two possible paths Starship could take. One of the options goes to the southeast between Mexico’s Yucatan Peninsula and the western tip of Cuba, then directly over Jamaica as the rocket accelerated into orbit over the Caribbean Sea. The other would see Starship departing South Texas on a northeasterly path and crossing over North Florida before reaching the Atlantic Ocean.

While both trajectories fly over land, they avoid the largest cities situated near the flight path. For example, the southerly route misses Cancun, Mexico, and the northerly path flies between Jacksonville and Orlando, Florida. “Orbital launches would primarily be to low inclinations with flight trajectories north or south of Cuba that minimize land overflight,” the FAA wrote in its draft environmental assessment.

The FAA analyzed two launch trajectory options for future orbital Starship test flights. Credit: Federal Aviation Administration

The proposed launch and reentry trajectories would result in temporary airspace closures, the FAA said. This could force delays or rerouting of anywhere from seven to 400 commercial flights for each launch, according to the FAA’s assessment.

Launch airspace closures are already the norm for Starship test flights. The FAA concluded that the reentry path over Mexico would require the closure of a swath of airspace covering more than 4,200 miles. This would affect up to 200 more commercial airplane flights during each Starship mission. Eventually, the FAA aims to shrink the airspace closures as SpaceX demonstrates improved reliability with Starship test flights.

Eventually, SpaceX will move some flights of Starship to Florida’s Space Coast, where rockets can safely launch in many directions over the Atlantic. By then, SpaceX aims to be launching Starships at a regular cadence—first, multiple flights per month, then per week, and then per day.

This will enable all of the things SpaceX wants to do with Starship. Chief among these goals is to fly Starships to Mars. Before then, SpaceX must master orbital refueling. NASA also has a contract with SpaceX to build Starships to land astronauts on the Moon’s south pole.

But all of that assumes SpaceX can routinely launch and recover Starships. That’s what engineers hope to soon prove they can do.

Starship will soon fly over towns and cities, but will dodge the biggest ones Read More »

In a win for science, NASA told to use House budget as shutdown looms

budget, NASA, Science, Space / Beth Washington / September 20, 2025

The situation with the fiscal year 2026 budget for the United States is, to put it politely, kind of a mess.

The White House proposed a budget earlier this year with significant cuts for a number of agencies, including NASA. In the months since then, through the appropriations process, both the House and Senate have proposed their own budget templates. However, Congress has not passed a final budget, and the new fiscal year begins on October 1.

As a result of political wrangling over whether to pass a “continuing resolution” to fund the government before a final budget is passed, a government shutdown appears to be increasingly likely.

Science saved, sort of

In the event of a shutdown, there has been much uncertainty about what would happen to NASA’s budget and the agency’s science missions. Earlier this summer, for example, the White House directed science mission leaders to prepare “closeout plans” for about two dozen spacecraft.

These science missions were targeted for cancellation under the president’s budget request for fiscal year 2026, and the development of these closeout plans indicated that, in the absence of a final budget from Congress, the White House could seek to end these (and other) programs beginning October 1.

However, two sources confirmed to Ars on Friday afternoon that interim NASA Administrator Sean Duffy has now directed the agency to work toward the budget level established in the House Appropriations Committee’s budget bill for the coming fiscal year. This does not support full funding for NASA’s science portfolio, but it is far more beneficial than the cuts sought by the White House.

In a win for science, NASA told to use House budget as shutdown looms Read More »

After a very slow start, Europe’s reusable rocket program shows signs of life

Europe, falcon 9, reusable rocket, Space, spacex, Themis / DJ Henderson / September 20, 2025

No one could accuse the European Space Agency and its various contractors of moving swiftly when it comes to the development of reusable rockets. However, it appears that Europe is finally making some credible progress.

This week, the France-based ArianeGroup aerospace company announced that it had completed the integration of the Themis vehicle, a prototype rocket that will test various landing technologies, on a launch pad in Sweden. Low-altitude hop tests, a precursor for developing a rocket’s first stage that can vertically land after an orbital launch, could start late this year or early next.

“This milestone marks the beginning of the ‘combined tests,’ during which the interface between Themis and the launch pad’s mechanical, electrical, and fluid systems will be thoroughly trialed, with the aim of completing a test under cryogenic conditions,” the company said.

Finally getting going

The advancement of the Themis program represents a concrete step forward for Europe, which has had a delayed and somewhat confusing response to the rise of reusable rockets a decade ago.

After several years of development and testing, including the Grasshopper program in Texas to demonstrate vertical landing, SpaceX landed its first orbital rocket in December 2015. Weeks earlier, Blue Origin landed the much smaller New Shepard vehicle after a suborbital hop. This put the industry on notice that first stage reuse was on the horizon.

At this point, the European Space Agency had already committed to a new medium-lift rocket, the Ariane 6, and locked in a traditional design that would not incorporate any elements of reuse. Most of its funding focused on developing the Ariane 6.

However, by the middle of 2017, the space agency began to initiate programs that would eventually lead to a reusable launch vehicle. They included:

After a very slow start, Europe’s reusable rocket program shows signs of life Read More »

Rocket Report: European rocket reuse test delayed; NASA tweaks SLS for Artemis II

artemis II, rocket report, sls, Space, starship / Kelly Newman / September 19, 2025

All the news that’s fit to lift

“There’s a lot of interest because of the fear that there’s just not a lot of capacity.”

Isar Aerospace’s Spectrum rocket lifts off from Andøya Spaceport, Norway, on March 30, 2025. Credit: Isar Aerospace/Brady Kenniston/NASASpaceflight.com

Welcome to Edition 8.11 of the Rocket Report! We have reached the time of year when it is possible the US government will shut down its operations at the end of this month, depending on congressional action. A shutdown would have significant implications for many NASA missions, but most notably a couple of dozen in the science directorate that the White House would like to shut down. At Ars, we will be watching this issue closely in the coming days. As for Artemis II, it seems to be far enough along that a launch next February seems possible as long as any government closure does not drag on for weeks and weeks.

As always, we welcome reader submissions, and 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.

Rocket Lab to sell common shares. The space company said Tuesday that it intends to raise up to $750 million by selling common shares, MSN reports. This new at-the-market program replaces a prior agreement that allowed Rocket Lab to sell up to $500 million of stock. Under that earlier arrangement, the company had sold roughly $396.6 million in shares before ending the program.

Seeking to scale up … The program’s structure enables Rocket Lab to sell shares periodically through the appointed agents, who may act as either principals or intermediaries. The larger offering indicates that Rocket Lab is aiming to bolster its cash reserves to support ongoing development of its launch services, including the medium-lift Neutron rocket and spacecraft manufacturing operations. The company’s stock dropped by about 10 percent after the announcement.

Astra targets mid-2026 for Rocket 4 debut. Astra is targeting next summer for the first flight of its Rocket 4 vehicle as the company prepares to reenter the launch market, Space News reports. At the World Space Business Week conference in Paris, Chris Kemp, chief executive of Astra, said the company was on track for a first launch of Rocket 4 in summer 2026 from Cape Canaveral, Florida. He highlighted progress Astra is making, such as tests of a new engine the company developed for the vehicle’s first stage that produces 42,000 pounds of thrust. Two of those engines will power the first stage, while the upper stage will use a single Hadley engine produced by Ursa Major.

Pricing a launch competitively … The vehicle will initially be capable of placing about 750 kilograms into low-Earth orbit for a price of $5 million. “That’ll be very competitive,” Kemp said in an interview after the presentation, similar to what SpaceX charges for payloads of that size through its rideshare program. The company is targeting customers seeking alternatives to SpaceX in a constrained launch market. “There’s a lot of interest because of the fear that there’s just not a lot of capacity,” he said, particularly for satellites too large to launch on Rocket Lab’s Electron. (submitted by EllPeaTea)

Sign Me Up!

Avio seeks to raise 400 million euros. Italian rocket builder Avio’s board of directors has approved a 400 million euro ($471 million) capital increase to fund an expansion of its manufacturing capacity to meet rising demand in the global space and defense markets, European Spaceflight reports. The company expects to complete the capital increase by the end of the year; however, it is still subject to a shareholder vote, scheduled for October 23.

Small rockets, big plans … The capital raise is part of a new 10-year business plan targeting an average annual growth rate of about 10 percent in turnover and more than 15 percent in core profit. This growth is projected to be driven by a higher Vega C launch cadence, the introduction of the Vega E rocket, continued participation in the Ariane 6 program by providing solid rocket boosters, and the construction of a new defense production facility in the United States, which is expected to be completed by 2028.

Isar working toward second Spectrum launch. In a briefing this week, Isar Aerospace executives discussed the outcome of the investigation into the March 30 launch of the Spectrum rocket from the Andøya Spaceport in northern Norway, Space News reports. The vehicle activated its flight termination system about half a minute after liftoff, shutting down its engines and plummeting into the waters just offshore of the pad. The primary issue with the rocket was a loss of attitude control.

Bend it like Spectrum … Alexandre Dalloneau, vice president of mission and launch operations at Isar, said that the company had not properly characterized bending modes of the vehicle at liftoff. Despite the failure to get to orbit, Dalloneau considers the first Spectrum launch a successful test flight. The company is working toward a second flight of Spectrum, which will take place “as soon as possible,” Dalloneau said. He did not give a specific target launch date, but officials indicated they were hoping to launch near the end of this year or early next year. (submitted by EllPeaTea)

Callisto rocket test delayed again. A new document from the French space agency CNES has revealed that the inaugural flight of the Callisto reusable rocket demonstrator has slipped from 2026 to 2027, European Spaceflight reports. This reusable launch testbed is a decade old. Conceived in 2015, the Cooperative Action Leading to Launcher Innovation in Stage Toss-back Operations (Callisto) project is a collaboration between CNES and the German and Japanese space agencies aimed at maturing reusable rocket technology for future European and Japanese launch systems.

Still waiting … The Callisto demonstrator will stand 14 meters tall, with a width of 1.1 meters and a takeoff mass of 3,500 kilograms. This latest revision to the program’s timeline comes less than a year after JAXA confirmed in October 2024 that the program’s flight-test campaign had been pushed to 2026. The campaign will be carried out from the Guiana Space Centre in French Guiana and will include an integration phase followed by eight test flights and two demonstration flights, all to be completed over a period of eight months. (submitted by EllPeaTea)

Falcon 9 launches larger Cygnus spacecraft. The first flight of Northrop’s upgraded Cygnus spacecraft, called Cygnus XL, launched Sunday evening from Cape Canaveral Space Force Station, Florida, en route to the International Space Station, Ars reports. Without a rocket of its own, Northrop Grumman inked a contract with SpaceX for three Falcon 9 launches to carry the resupply missions until engineers could develop a new, all-domestic version of the Antares rocket. Sunday’s launch was the last of these three Falcon 9 flights. Northrop is partnering with Firefly Aerospace on a new rocket, the Antares 330, using a new US-made booster stage and engines.

A few teething issues … This new rocket won’t be ready to fly until late 2026, at the earliest, somewhat later than Northrop officials originally hoped. The company confirmed it has purchased a fourth Falcon 9 launch from SpaceX for the next Cygnus cargo mission in the first half of next year, in a bid to bridge the gap until the debut of the Antares 330 rocket. Due to problems with the propulsion system on the larger Cygnus vehicle, its arrival at the space station was delayed. But the vehicle successfully reached the station on Thursday, carrying a record 11,000 pounds of cargo.

Launch companies still struggling with cadence. Launch companies are reiterating plans to sharply increase flight rates to meet growing government and commercial demand, even as some fall short of earlier projections, Space News reports. Executives speaking at a September 15 panel at the World Space Business Week conference highlighted efforts to scale up flights of new vehicles that have entered service in the last two years. “The key for us is cadence,” said Laura Maginnis, vice president of New Glenn mission management at Blue Origin. However, the publication notes, at this time last year, Blue Origin was projecting eight to 10 New Glenn launches this year. There has been one.

It’s difficult to go from 1 to 100 … Blue Origin is not alone in falling short of forecasts. United Launch Alliance projected 20 launches in 2025 between the Atlas 5 and Vulcan Centaur, but in August, CEO Tory Bruno said the company now expects nine. As recently as June, Arianespace projected five Ariane 6 launches this year, including the debut of the more powerful Ariane 64, with four solid-rocket boosters, but has completed only two Ariane 62 flights, including one in August.

NASA makes some modifications to SLS for Artemis II. This week, the space agency declared the SLS rocket is now “ready” to fly crew for the Artemis II mission early next year. However, NASA and its contractors did make some modest changes after the first flight of the booster in late 2022. For example, the Artemis II rocket includes an improved navigation system compared to Artemis I. Its communications capability has also been improved by repositioning antennas on the rocket to ensure continuous communications with the ground.

Not good, but bad vibrations … Additionally, SLS will jettison the spent boosters four seconds earlier during the Artemis II ascent than occurred during Artemis I. Dropping the boosters several seconds closer to the end of their burn will give engineers flight data to correlate with projections that shedding the boosters several seconds sooner will yield approximately 1,600 pounds of payload to Earth orbit for future SLS flights. During the Artemis I test flight, the SLS rocket experienced higher-than-expected vibrations near the solid rocket booster attachment points that were caused by unsteady airflow. To steady the airflow, a pair of 6-foot-long strakes flank each booster’s forward connection points on the SLS intertank.

Federal judge sides with SpaceX, FAA. The initial launch of Starship in April 2023 spread debris across a wide area, sending pulverized concrete as far as six miles away as the vehicle tore up the launch pad. After this, environmental groups and other organizations sued the FAA when the federal organization reviewed the environmental impact of this launch and cleared SpaceX to launch again several months later. A federal judge in Washington, DC, ruled this week that the FAA did not violate environmental laws as part of this review, the San Antonio Express-News reports.

Decision grounded within reason … In his opinion issued Monday, Judge Carl Nichols determined the process was not capricious, writing, “Most of the (programmatic environmental assessment’s) conclusions were well-reasoned and supported by the record, and while parts of its analysis left something to be desired, even those parts fell ‘within a broad zone of reasonableness.'” The environmental organizations said they were considering the next steps for the case and a potential appeal. (submitted by RP)

Next three launches

September 13: Falcon 9 | Starlink 17-12 | Vandenberg Space Force Base, California | 15: 44 UTC

September 21: Falcon 9 | Starlink 10-27 | Cape Canaveral Space Force Station, Florida | 09: 20 UTC

September 21: Falcon 9 | NROL-48 | Vandenberg Space Force Base, California | 17: 23 UTC

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.

Rocket Report: European rocket reuse test delayed; NASA tweaks SLS for Artemis II Read More »

Trump’s Golden Dome will cost 10 to 100 times more than the Manhattan Project

american enterprise institute, Department of Defense, golden dome, military space, missile defense, Science, Space, US Space Force / Shannon Garcia / September 18, 2025

Instead, the $252 billion option would include additional Patriot missile batteries and air-control squadrons, dozens of new aircraft, and next-generation systems to defend against drone and cruise missile attacks on major population centers, military bases, and other key areas.

At the other end of the spectrum, Harrison writes that the “most robust air and missile defense shield possible” will cost some $3.6 trillion through 2045, nearly double the life cycle cost of the F-35 fighter jet, the most expensive weapons program in history.

“In his Oval Office announcement, President Trump set a high bar for Golden Dome, declaring that it would complete ‘the job that President Reagan started 40 years ago, forever ending the missile threat to the American homeland and the success rate is very close to 100 percent,'” Harrison writes.

The numbers necessary to achieve this kind of muscular defense are staggering: 85,400 space-based interceptors, 14,510 new air-launched interceptors, 46,904 more surface-launched interceptors, hundreds of new sensors on land, in the air, at sea, and in space to detect incoming threats, and more than 20,000 additional military personnel.

SpaceX’s Starship rocket could offer a much cheaper ride to orbit for thousands of space-based missile interceptors. Credit: SpaceX

No one has placed missile interceptors in space before, and it will require thousands of them to meet even the most basic goals for Golden Dome. Another option Harrison presents in his paper would emphasize fast-tracking a limited number of space-based interceptors that could defend against a smaller attack of up to five ballistic missiles, plus new missile warning and tracking satellites, ground- and sea-based interceptors, and other augmentations of existing missile-defense forces.

That would cost an estimated $471 billion over the next 20 years.

Supporters of the Golden Dome project say it’s much more feasible today to field space-based interceptors than it was in the Reagan era. Commercial assembly lines are now churning out thousands of satellites per year, and it’s cheaper to launch them today than it was 40 years ago.

A report released by the nonpartisan Congressional Budget Office (CBO) in May examined the effect of reduced launch prices on potential Golden Dome architectures. The CBO estimated that the cost of deploying between 1,000 and 2,000 space-based interceptors would be between 30 and 40 percent cheaper today than the CBO found in a previous study in 2004.

But the costs just for deploying up to 2,000 space-based interceptors remain astounding, ranging from $161 billion to $542 billion over 20 years, even with today’s reduced launch prices, according to the CBO. The overwhelming share of the cost today would be developing and building the interceptors themselves, not launching them.

Trump’s Golden Dome will cost 10 to 100 times more than the Manhattan Project Read More »

A record supply load won’t reach the International Space Station as scheduled

Commercial space, Cygnus, human spaceflight, international space station, ng-23, Northrop Grumman, Science, Space / Beth Washington / September 17, 2025

The damage occurred during the shipment of the spacecraft’s pressurized cargo module from its manufacturer in Italy. While Northrop Grumman hopes to repair the module and launch it on a future flight, officials decided it would be quicker to move forward with the next spacecraft in line for launch this month.

This is the first flight of a larger model of the Cygnus spacecraft known as the Cygnus XL, measuring 5.2 feet (1.6 meters) longer, with the ability to carry 33 percent more cargo than the previous Cygnus spacecraft design. With this upgrade, this mission is carrying the heaviest load of supplies ever delivered to the ISS by a commercial cargo vehicle.

The main engine on the Cygnus spacecraft burns a mixture of hydrazine and nitrogen tetroxide propellants. This mixture is hypergolic, meaning the propellants ignite upon contact with one another, a design heralded for its reliability. The spacecraft has a separate set of less powerful reaction control system thrusters normally used for small maneuvers, and for pointing the ship in the right direction as it makes its way to the ISS.

If the main engine is declared unusable, one possible option for getting around the main engine problem might be using these smaller thrusters to more gradually adjust the Cygnus spacecraft’s orbit to line up for the final approach with the ISS. However, it wasn’t immediately clear if this was a viable option.

Unlike SpaceX’s Cargo Dragon spacecraft, the Cygnus is not designed to return to Earth intact. Astronauts fill it with trash before departure from the ISS, and then the spacecraft heads for a destructive reentry over the remote Pacific Ocean. Therefore, a problem preventing the spacecraft from reaching the ISS would result in the loss of all of the cargo onboard.

The supplies on this mission, designated NG-23, include fresh food, hardware for numerous biological and tech demo experiments, and spare parts for things like the space station’s urine processor and toilet to replenish the space station’s dwindling stocks of those items.

A record supply load won’t reach the International Space Station as scheduled Read More »