Space – Page 15

Astroscale aced the world’s first rendezvous with a piece of space junk

Astroscale, Japan, JAXA, satellite servicing, Science, Space, space debris, space junk / Beth Washington / February 28, 2025

Astroscale’s US subsidiary won a $25.5 million contract from the US Space Force in 2023 to build a satellite refueler that can hop around geostationary orbit. Like the ADRAS-J mission, this project is a public-private partnership, with Astroscale committing $12 million of its own money. In January, the Japanese government selected Astroscale for a contract worth up to $80 million to demonstrate chemical refueling in low-Earth orbit.

The latest win for Astroscale came Thursday, when the Japanese Ministry of Defense awarded the company a contract to develop a prototype satellite that could fly in geostationary orbit and collect information on other objects in the domain for Japan’s military and intelligence agencies.

“We are very bullish on the prospects for defense-related business,” said Nobu Matsuyama, Astroscale’s chief financial officer.

Astroscale’s other projects include a life extension mission for an unidentified customer in geostationary orbit, providing a similar service as Northrop Grumman’s Mission Extension Vehicle (MEV).

So, can Astroscale really do all of this? In an era of a militarized final frontier, it’s easy to see the usefulness of sidling up next to a “non-cooperative” satellite—whether it’s to refuel it, repair it, de-orbit it, inspect it, or (gasp!) disable it. Astroscale’s demonstration with ADRAS-J showed it can safely operate near another object in space without navigation aids, which is foundational to any of these applications.

So far, governments are driving demand for this kind of work.

Astroscale raised nearly $400 million in venture capital funding before going public on the Tokyo Stock Exchange last June. After quickly spiking to nearly $1 billion, the company’s market valuation has dropped to about $540 million as of Thursday. Astroscale has around 590 full-time employees across all its operating locations.

Matsuyama said Astroscale’s total backlog is valued at about 38.9 billion yen, or $260 million. The company is still in a ramp-up phase, reporting operating losses on its balance sheet and steep research and development spending that Matsuyama said should max out this year.

“We are the only company that has proved RPO technology for non-cooperative objects, like debris, in space,” Okada said last month.

“In simple terms, this means approach and capture of objects,” Okada continued. “This capability did not exist before us, but one’s mastering of this technology enables you to provide not only debris removal service, but also orbit correction, refueling, inspection, observation, and eventually repair and reuse services.”

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German startup to attempt the first orbital launch from Western Europe

Commercial space, Europe, germany, isar aerospace, launch, Norway, Science, Space, spectrum rocket / Beth Washington / February 22, 2025

The nine-engine first stage for Isar Aerospace’s Spectrum rocket lights up on the launch pad on February 14. Credit: Isar Aerospace

Isar builds almost all of its rockets in-house, including Spectrum’s Aquila engines.

“The flight will be the first integrated test of tens of thousands of components,” said Josef Fleischmann, Isar’s co-founder and chief technical officer. “Regardless of how far we get, this first test flight will hopefully generate an enormous amount of data and experience which we can apply to future missions.”

Isar is the first European startup to reach this point in development. “Reaching this milestone is a huge success in itself,” Meltzer said in a statement. “And while Spectrum is ready for its first test flight, launch vehicles for flights two and three are already in production.”

Another Bavarian company, Rocket Factory Augsburg, destroyed its first booster during a test-firing on its launch pad in Scotland last year, ceding the frontrunner mantle to Isar. RFA received its launch license from the UK government last month and aims to deliver its second booster to the launch site for hot-fire testing and a launch attempt later this year.

There’s an appetite within the European launch industry for new companies to compete with Arianespace, the continent’s sole operational launch services provider backed by substantial government support. Delays in developing the Ariane 6 rocket and several failures of Europe’s smaller Vega launcher forced European satellite operators to look abroad, primarily to SpaceX, to launch their payloads.

The European Space Agency is organizing the European Launcher Challenge, a competition that will set aside some of the agency’s satellites for launch opportunities with a new crop of startups. Isar is one of the top contenders in the competition to win money from ESA. The agency expects to award funding to multiple European launch providers after releasing a final solicitation later this year.

The first flight of the Spectrum rocket will attempt to reach a polar orbit, flying north from Andøya Spaceport. Located at approximately 69 degrees north latitude, the spaceport is poised to become the world’s northernmost orbital launch site.

Because the inaugural launch of the Spectrum rocket is a test flight, it won’t carry any customer payloads, an Isar spokesperson told Ars.

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SpaceX engineers brought on at FAA after probationary employees were fired

Policy, Space / Mike M. / February 21, 2025

Kiernan is currently a lead software engineer at SpaceX, according to his LinkedIn page. Before joining SpaceX in May 2020, he worked at Wayfair and is a 2017 Dartmouth graduate.

Smeal is a software engineer who has worked at SpaceX since September 2021, according to his LinkedIn. He graduated from Saint Vincent College in 2018.

Glantz is a software engineer who has worked at SpaceX since May 2024 and worked as an engineering analyst at Goldman Sachs from 2019 to 2021, according to his LinkedIn, and graduated from the University of Michigan in 2019.

Malaska, Kiernan, Smeal, and Glantz did not immediately respond to requests for comment. The FAA also did not immediately respond to requests for comment.

In his post on X, Duffy wrote, “Because I know the media (and Hillary Clinton) will claim Elon’s team is getting special access, let me make clear that the @FAANews regularly gives tours of the command center to both media and companies.”

But on Wednesday, FAA acting administrator Chris Rocheleau wrote in an email to FAA staff, viewed by WIRED, that DOGE and the teams of special government employees deployed in federal agencies were “top-of-mind,” before noting that the agency had “recently welcomed” a team of special government employees who had already toured some FAA facilities. “We are asking for their help to engineer solutions while we keep the airspace open and safe,” he wrote, adding that the new employees had already visited the FAA Command Center and Potomac TRACON, a facility that controls the airspace around and provides air traffic control services to airports in the DC, Maryland, and Virginia areas.

In a Department of Transportation all-hands meeting late last week, Duffy responded to a question about DOGE’s role in national airspace matters, and without explicitly mentioning the new employees, suggested help was needed on reforming Notice to Air Mission (NOTAM) alerts, a critical system that distributes real-time data and warnings to pilots but which has had significant outages, one as recently as this month. “If I can get ideas from really smart engineers on how we can fix it, I’m going to take those ideas,” he said, according to a recording of the meeting reviewed by WIRED. “Great engineers” might also work on airspace issues, he said.

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In a last-minute decision, White House decides not to terminate NASA employees

NASA, Space, terminations, trump white house / Beth Washington / February 19, 2025

So what changed?

It was not immediately clear why. A NASA spokesperson in Washington, DC, offered no comment on the updated guidance. Two sources indicated that it was plausible that private astronaut Jared Isaacman, whom President Trump has nominated to lead the space agency, asked for the cuts to be put on hold.

Although this could not be confirmed, it seems reasonable that Isaacman would want to retain some control over where cuts at the agency are made. Firing all probationary employees—which is the most expedient way to reduce the size of government—is a blunt instrument. It whacks new hires that the agency may have recruited for key positions, as well as high performers who earned promotions.

The reprieve in these terminations does not necessarily signal that NASA will escape significant budget or employment cuts in the coming months.

The administration could still seek to terminate probationary employees. In addition, Ars reported earlier that directors at the agency’s field centers have been told to prepare options for a “significant” reduction in force in the coming months. The scope of these cuts has not been defined, and it’s likely they would need to be negotiated with Congress.

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By the end of today, NASA’s workforce will be about 10 percent smaller

cuts, NASA, Space, workforce / Kelly Newman / February 19, 2025

Spread across NASA’s headquarters and 10 field centers, which dot the United States from sea to sea, the space agency has had a workforce of nearly 18,000 civil servants.

However, by the end of today, that number will have shrunk by about 10 percent since the beginning of the second Trump administration four weeks ago. And the world’s preeminent space agency may still face significant additional cuts.

According to sources, about 750 employees at NASA accepted the “fork in the road” offer to take deferred resignation from the space agency later this year. This sounds like a lot of people, but generally about 1,000 people leave the agency every year, so effectively, many of these people might just be getting paid to leave jobs they were already planning to exit from.

The culling of “probationary” employees will be more impactful. As it has done at other federal agencies, the Trump administration is generally firing federal employees who are in the “probationary” period of their employment, which includes new hires within the last one or two years or long-time employees who have moved into or been promoted into a new position. About 1,000 or slightly more employees at NASA were impacted by these cuts.

Adding up the deferred resignations and probationary cuts, the Trump White House has now trimmed about 10 percent of the agency’s workforce.

However, the cuts may not stop there. Two sources told Ars that directors at the agency’s field centers have been told to prepare options for a “significant” reduction in force in the coming months. The scope of these cuts has not been defined, and it’s possible they may not even happen, given that the White House must negotiate budgets for NASA and other agencies with the US Congress. But this directive for further reductions in force casts more uncertainty on an already demoralized workforce and signals that the Trump administration would like to make further cuts.

By the end of today, NASA’s workforce will be about 10 percent smaller Read More »

Turning the Moon into a fuel depot will take a lot of power

chemistry, oxygen, oxygen production, Science, Space, Space exploration / Shannon Garcia / February 18, 2025

Getting oxygen from regolith takes 24 kWh per kilogram, and we’d need tonnes.

Without adjustments for relativity, clocks here and on the Moon would rapidly diverge. Credit: NASA

If humanity is ever to spread out into the Solar System, we’re going to need to find a way to put fuel into rockets somewhere other than the cozy confines of a launchpad on Earth. One option for that is in low-Earth orbit, which has the advantage of being located very close to said launch pads. But it has the considerable disadvantage of requiring a lot of energy to escape Earth’s gravity—it takes a lot of fuel to put substantially less fuel into orbit.

One alternative is to produce fuel on the Moon. We know there is hydrogen and oxygen present, and the Moon’s gravity is far easier to overcome, meaning more of what we produce there can be used to send things deeper into the Solar System. But there is a tradeoff: any fuel production infrastructure will likely need to be built on Earth and sent to the Moon.

How much infrastructure is that going to involve? A study released today by PNAS evaluates the energy costs of producing oxygen on the Moon, and finds that they’re substantial: about 24 kWh per kilogram. This doesn’t sound bad until you start considering how many kilograms we’re going to eventually need.

Free the oxygen!

The math that makes refueling from the Moon appealing is pretty simple. “As a rule of thumb,” write the authors of the new study on the topic, “rockets launched from Earth destined for [Earth-Moon Lagrange Point 1] must burn ~25 kg of propellant to transport one kg of payload, whereas rockets launched from the Moon to [Earth-Moon Lagrange Point 1] would burn only ~four kg of propellant to transport one kg of payload.” Departing from the Earth-Moon Lagrange Point for locations deeper into the Solar System also requires less energy than leaving low-Earth orbit, meaning the fuel we get there is ultimately more useful, at least from an exploration perspective.

But, of course, you need to make the fuel there in the first place. The obvious choice for that is water, which can be split to produce hydrogen and oxygen. We know there is water on the Moon, but we don’t yet know how much, and whether it’s concentrated into large deposits. Given that uncertainty, people have also looked at other materials that we know are present in abundance on the Moon’s surface.

And there’s probably nothing more abundant on that surface than regolith, the dust left over from constant tiny impacts that have, over time, eroded lunar rocks. The regolith is composed of a variety of minerals, many of which contain oxygen, typically the heavier component of rocket fuel. And a variety of people have figured out the chemistry involved in separating oxygen from these minerals on the scale needed for rocket fuel production.

But knowing the chemistry is different from knowing what sort of infrastructure is needed to get that chemistry done at a meaningful scale. To get a sense of this, the researchers decided to focus on isolating oxygen from a mineral called ilmenite, or FeTiO₃. It’s not the easiest way to get oxygen—iron oxides win out there—but it’s well understood. Someone actually patented oxygen production from ilmenite back in the 1970s, and two hardware prototypes have been developed, one of which may be sent to the Moon on a future NASA mission.

The researchers propose a system that would harvest regolith, partly purify the ilmenite, then combine it with hydrogen at high temperatures, which would strip the oxygen out as water, leaving behind purified iron and titanium (both of which may be useful to have). The resulting water would then be split to feed the hydrogen back into the system, while the oxygen can be sent off for use in rockets.

(This wouldn’t solve the issue of what that oxygen will ultimately oxidize to power a rocket. But oxygen is typically the heavier component of rocket fuel combinations—typically about 80 percent of the mass—and so the bigger challenge to get to a fuel depot.)

Obviously, this process will require a lot of infrastructure, like harvesters, separators, high-temperature reaction chambers, and more. But the researchers focus on a single element: how much power will it suck down?

More power!

To get their numbers, the researchers made a few simplifying assumptions. These include assuming that it’s possible to purify ilmenite from raw regolith and that it will be present in particles small enough that about half the material present will participate in chemical reactions. They ignored both the potential to get even more oxygen from the iron and titanium oxides present, as well as the potential for contamination from problematic materials like hydrogen sulfide or hydrochloric acid.

The team found that almost all of the energy is consumed at three steps in the process: the high-temperature hydrogen reaction that produces water (55 percent), splitting the water afterwards (38 percent), and converting the resulting oxygen to its liquid form (five percent). The typical total usage, depending on factors like the concentration of ilmenite in the regolith, worked out to be about 24 kW-hr for each kilogram of liquid oxygen.

Obviously, the numbers are sensitive to how efficiently you can do things like heat the reaction mix. (It might be possible to do this heating with concentrated solar, avoiding the use of electricity for this entirely, but the authors didn’t analyze that.) But it was also sensitive to less obvious efficiencies. For example, a better separation of the ilmenite from the rest of the regolith means you’re using less energy to heat contaminants. So, while the energetic cost of that separation is small, it pays off to do it effectively.

Based on orbital observations, the researchers map out the areas where ilmenite is present at high enough concentrations for this approach to make sense. These include some of the mares on the near side of the Moon, so they’re easy to get to.

A map of the lunar surface with locations highlighted in color. — A map of the lunar surface, with areas with high ilmenite concentrations shown in blue. Credit: Leger, et. al.

On its own, 24 kWh doesn’t seem like a lot of power. The problem is that we will need a lot of kilograms. The researchers estimate that getting an empty SpaceX Starship from the lunar surface to the Earth-Moon Lagrange Point takes 80 tonnes of liquid oxygen. And a fully fueled starship can hold over 500 tonnes of liquid oxygen.

We can compare that to something like the solar array on the International Space Station, which has a capacity of about 100 kW. That means it could power the production of about four kilograms of oxygen an hour. At that rate, it’ll take a bit over 10 days to produce a tonne, and a bit more than two years to get enough oxygen to get an empty Starship to the Lagrange Point—assuming 24-7 production. Being on the near side, they will only produce for half the time, given the lunar day.

Obviously, we can build larger arrays than that, but it boosts the amount of material that needs to be sent to the Moon from Earth. It may potentially make more sense to use nuclear power. While that would likely involve more infrastructure than solar arrays, it would allow the facilities to run around the clock, thus getting more production from everything else we’ve shipped from Earth.

This paper isn’t meant to be the final word on the possibilities for lunar-based refueling; it’s simply an early attempt to put hard numbers on what ultimately might be the best way to explore our Solar System. Still, it provides some perspective on just how much effort we’ll need to make before that sort of exploration becomes possible.

PNAS, 2025. DOI: 10.1073/pnas.2306146122 (About DOIs).

John is Ars Technica’s science editor. He has a Bachelor of Arts in Biochemistry from Columbia University, and a Ph.D. in Molecular and Cell Biology from the University of California, Berkeley. When physically separated from his keyboard, he tends to seek out a bicycle, or a scenic location for communing with his hiking boots.

Turning the Moon into a fuel depot will take a lot of power Read More »

NASA nominee previews his vision for the agency: Mars, hard work, inspiration

jared isaacman, NASA, Space / DJ Henderson / February 18, 2025

“When I see a picture like this, it is impossible not to feel energized about the future,” he wrote. “I think it is so important for people to understand the profound implications of sending humans to another planet.”

Among these, Isaacman cited the benefits of advancing state-of-the-art technologies including propulsion, habitability, power generation, in-situ resource utilization, and manufacturing.

“We will create systems, countermeasures, and pharmaceuticals to sustain human life in extreme conditions, addressing challenges like radiation and microgravity over extended durations,” he said. “These advancements will form the foundation for lower-cost, more frequent crewed and robotic missions across the solar system, creating a flywheel effect to accelerate world-changing discoveries.”

Additionally, Isaacman said taking the first steps toward humanity living beyond Earth was critical to the long-term survival of the species, and that such an achievement would inspire a new generation of scientific and technological leaders.

“Achieving such an outrageous endeavor—like landing American astronauts on another planet—will inspire generations of dreamers to build upon these accomplishments, set even bolder goals, and drive humankind’s greatest adventure forward,” he wrote.

Upon being asked about his thoughts about sending humans to Mars during the launch window in late 2028 or early 2029, Isaacman said he remains on the outside of NASA’s planning process for now. But he did say the United States should start to put serious effort toward sending humans to Mars.

“We should invest a reasonable amount of resources coupled with extreme work intensity and then make them a reality,” he wrote. “Even getting 90% there in the near term would set humankind on an incredible trajectory for the long term.”

NASA nominee previews his vision for the agency: Mars, hard work, inspiration Read More »

Rocket Report: A blue mood at Blue; Stoke Space fires a shot over the bow

rocket report, Space / Mike M. / February 16, 2025

All the news that’s fit to lift

“Rapid turnaround isn’t merely a goal, it’s baked into the design.”

A bottoms-up view of Stoke Space’s Andromeda upper stage. Credit: Stoke Space

Welcome to Edition 7.31 of the Rocket Report! The unfortunate news this week concerns layoffs. Blue Origin announced a 10 percent cut in its workforce as the company aims to get closer to breaking even. More broadly in the space industry, there is unease about what the Trump administration’s cuts to NASA and other federal agencies might mean.

We don’t have all the answers, but it does seem that NASA is likely to be subject to less deep cuts than some other parts of the government. We should find out sometime in March when the Trump White House submits its initial budget request. Congress, of course, will have the final say.

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.

PLD Space continues to grow. The Spain-based launch company said this week that it now has more than 300 employees as it works toward an orbital launch attempt. “In this race for space supremacy, the amount of capital raised and the talent gathered have become key indicators of a company’s potential for success,” the company said. “While capital acts as the fuel for these ambitious initiatives, the talent behind it is the catalyst that drives them.”

Working to reach orbit … The average age of employees at PLD Space is 34, and the company is hiring 15 people a month as it works to develop the Miura 5 rocket. It’s unclear which of the commercial launch startups in Europe will succeed, but PLD Space has a decent chance to be among them. With luck, the Miura 5 launch vehicle will make its debut sometime in 2026.

Will NASA launch on a Transporter mission? NASA announced this week that it has selected SpaceX to launch a small exoplanet science mission as a rideshare payload as soon as September, Space News reports. The task order to launch the Pandora mission was made through the Venture-class Acquisition of Dedicated and Rideshare launch services contract, intended for small missions with higher acceptance of risk.

Could fly on a Falcon 9 … Pandora is an ESPA Grande-class spacecraft, a category that includes spacecraft weighing up to 320 kilograms, and is designed to operate in a Sun-synchronous orbit. That suggests Pandora could launch on SpaceX’s Transporter series of dedicated rideshare missions that send payloads to such orbits, but neither NASA nor SpaceX disclosed specifics. The NASA announcement also did not disclose the value of the task order to SpaceX.

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Stoke Space dishes on Andromeda upper stage. The Washington-based launch company has revealed the name of its Nova rocket’s upper stage, Andromeda, and provided some new details about the design. Andromeda will incorporate hot staging, Stoke says, and will use fewer but larger thrusters—24 instead of 30. The upper stage is now mounted on Stoke’s test stand in Moses Lake, Washington, the company said.

Hot staging, hot talk … The new design is focused on rapid reusability, with easier access and serviceability to components of the engines and heat shield. “These changes further reduce complexity and allow the entire engine to be serviced—or even replaced—within hours or minutes. Rapid turnaround isn’t merely a goal, it’s baked into the design,” the company said. The upper stage will also incorporate “hot staging” to improve the capacity to orbit. You’ve got to appreciate the subtle dig at SpaceX’s Starship program, too: the design allows for hot staging “without the need for a heavy one-time-use interstage shield to protect Stage 1.” Shots fired!

European space commissioner worried about launch. During a keynote address at the Perspectives Spatiales 2025 event in Paris, European Commissioner for Defence Industry and Space Andrius Kubilius outlined the challenging position the continent’s space sector finds itself in, European Spaceflight reports. “Commercial sales are down. Exports are down. Profits are down. And this comes at a time when we need space more than ever. For our security. For our survival.”

Actions, not words, needed … Rhetorical language and bold declarations are inspiring, but when it comes to securing Europe’s place in the global space race, adopted policy and appropriated funding are where aspirations are tested, the European publication stated. Without concrete investments, streamlined regulations, and clear strategic priorities, Europe’s ambition to once again lead the global launch market is likely to amount to little.

Election set to create Starbase, the city. A Texas county on Wednesday approved holding an election sought by SpaceX that would let residents living around the company’s launch and production facilities in South Texas decide whether to formally create a new city called Starbase, ABC News reports. The election was set for May 3, and votes can only be cast by residents living near the launch site, which is currently part of an unincorporated area of Cameron County located along the US-Mexico border. Approval is expected.

A busy beehive … In December, more than 70 area residents signed a petition requesting an election to make Starbase its own municipality. Cameron County Judge Eddie Treviño said the county reviewed the petition and found it met the state’s requirements for the incorporation process to move forward. Kathy Lueders, Starbase’s general manager, has previously said that the incorporation would streamline certain processes to build amenities in the area. More than 3,400 full-time SpaceX employees and contractors work at the site. (submitted by teb)

China taps into commercial space for station missions. China will launch a pair of low-cost space station resupply spacecraft this year on new commercial launch vehicles, Space News reports. The Haolong cargo space shuttle from the Chengdu Aircraft Design Institute will launch on Landspace’s Zhuque-3. The reusable stainless steel, methane-liquid oxygen Zhuque-3 rocket is due to have its first flight in the third quarter of this year. The reusable Haolong vehicle will be 10 meters in length, around 7,000 kilograms in mass, and capable of landing on a runway.

Following a commercial trail laid by NASA … Meanwhile, the Qingzhou cargo spacecraft from the Innovation Academy for Microsatellites of the Chinese Academy of Sciences will launch on the first flight of the CAS Space Kinetica-2 (Lijian-2) rocket no earlier than September. The development is analogous to NASA’s Commercial Resupply Services program, diversifying China’s options for supplying the Tiangong space station. If even one of these missions takes place successfully within the next year, it would represent a major step forward for China’s quasi-commercial space program. (submitted by EllPeaTea)

H3 rocket launches its fifth mission. Japan’s flagship H3 rocket successfully launched the Michibiki 6 navigation satellite early Sunday, enhancing the country’s regional GPS capabilities, Space News reports. The launch was Japan’s first of 2025 and suggests that the relatively new H3 rocket is starting to hit its stride.

Getting up to speed … The expendable launcher’s inaugural launch in March 2023, after numerous delays, suffered a second-stage engine failure, leading controllers to issue a destruct command to destroy the stage and its ALOS-3 payload. Since then, it has had a successful run of launches, most recently the Kirameki 3 communications satellite for defense purposes in November last year. (submitted by EllPeaTea)

Blue Origin lays off 10 percent of its employees. A little less than a month after the successful debut of its New Glenn rocket, Blue Origin’s workforce will be trimmed by 10 percent, Ars reports. The cuts were announced during an all-hands meeting on Thursday morning led by the rocket company’s chief executive, Dave Limp. During the gathering, Limp cited business strategy as the rationale for making the cuts to a workforce of more than 10,000 people.

Growing too fast … “We grew and hired incredibly fast in the last few years, and with that growth came more bureaucracy and less focus than we needed,” Limp wrote in an email to the entire workforce after the meeting. Even before Thursday’s announcement, Blue Origin sought to control costs. According to sources, the company has had a hiring freeze for the last six months. And in January, it let the majority of its contractors go. Layoffs suck—here’s hoping that those let go this week find a soft landing.

Speaking of Blue, they’re targeting spring for next launch. Blue Origin expects to attempt its second New Glenn launch in late spring after correcting problems that prevented the booster from landing on the first launch last month, Space News reports. Speaking at the 27th Annual Commercial Space Conference on Wednesday, Dave Limp suggested a propulsion issue caused the loss of the New Glenn booster during its landing attempt on the Jan. 16 NG-1 launch.

Understanding the issues … “We had most of the right conditions in the engine but we weren’t able to get everything right to the engine from the tanks,” Limp said. “We think we understand what the issues are.” A second booster is in production. “I don’t think it’s going to delay our path to flight,” Limp said of the investigation. “I think we can still fly late spring.” June seems overly optimistic. One source with knowledge of the second booster’s production said October might be a more reasonable timeframe for the second launch.

Boeing warns of potential SLS workforce cuts. The primary contractor for the Space Launch System rocket, Boeing, is preparing for the possibility that NASA cancels the long-running program, Ars reports. Last Friday, with less than an hour’s notice, David Dutcher, Boeing’s vice president and program manager for the SLS rocket, scheduled an all-hands meeting for the approximately 800 employees working on the program. The apparently scripted meeting lasted just six minutes, and Dutcher didn’t take questions. Afterward, Ars learned that NASA was not informed the meeting would take place.

Waiting on the president’s budget request … During his remarks, Dutcher said Boeing’s contracts for the rocket could end in March and that the company was preparing for layoffs in case the contracts with the space agency were not renewed. The aerospace company, which is the primary contractor for the rocket’s large core stage, issued the notifications as part of the Worker Adjustment and Retraining Notification (or WARN) Act. The timing of Friday’s hastily called meeting aligns with the anticipated release of President Trump’s budget proposal for fiscal year 2026, which should signal the administration’s direction on the SLS rocket.

Space Force is still waiting on Vulcan. Last October, United Launch Alliance started stacking its third Vulcan rocket on a mobile launch platform in Florida in preparation for a mission for the US Space Force by the end of the year. However, that didn’t happen, Ars reports. Now, ULA is still awaiting the Space Force’s formal certification of its new rocket, further pushing out delivery schedules for numerous military satellites booked to fly to orbit on the Vulcan launcher.

Falling short of ambitious goals … In fact, ULA has started to take the rocket apart. This involves removing the rocket’s Centaur upper stage, interstage adapter, and booster stage from its launch mount. Instead, ULA will now focus on launching a batch of Project Kuiper satellites for Amazon on an Atlas V rocket in the next couple of months before pivoting back to Vulcan. ULA hoped to launch as many as 20 missions in 2025, with roughly an even split between its new Vulcan rocket and the Atlas V heading for retirement. Clearly, this now won’t happen.

Next three launches

Feb. 15: Falcon 9 | Starlink 12-8 | Cape Canaveral Space Force Station, Florida | 06: 14 UTC

Feb. 17: Falcon 9 | NROL-57 | Vandenberg Space Force Base, California | 13: 18 UTC

Feb. 18: Falcon 9 | Starlink 10-12 | Cape Canaveral Space Force Station, Florida | 23: 00 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: A blue mood at Blue; Stoke Space fires a shot over the bow Read More »

Citing too much “bureaucracy,” Blue Origin to cut 10 percent of its workforce

blue origin, Space / 9u50fv / February 14, 2025

Making difficult decisions

With the cuts, Blue Origin will seek to trim its management ranks. Of the cuts, Limp said, “This resulted in eliminating some positions in engineering, R&D, and program/project management and thinning out our layers of management.”

He added that these difficult decisions will set Blue Origin on course for success this year and beyond. “This year alone, we will land on the Moon, deliver a record number of incredible engines, and fly New Glenn and New Shepard on a regular cadence,” he wrote.

Even before Thursday’s announcement, Blue Origin had been seeking to control costs. According to sources, the company has had a hiring freeze in place for the last six months. And in January, it let the majority of its contractors go.

The cuts appear to be an effort by Bezos, who hired Limp a little more than a year ago, to put Blue Origin on a more financially sound footing. Although Bezos could continue to fund Blue Origin indefinitely with the wealth he has acquired from Amazon, he has been pushing programs to become, at worst, revenue-neutral.

In addition to the New Glenn rocket, Blue Origin is working on developing large uncrewed and crewed lunar landers, a human spacecraft for the rocket, and an Orbital Reef space station. The impacts to these programs were not immediately clear.

Citing too much “bureaucracy,” Blue Origin to cut 10 percent of its workforce Read More »

Curiosity spies stunning clouds at twilight on Mars

clouds, Mars, Space / Mike M. / February 13, 2025

In the mid- and upper-latitudes on Earth, during the early evening hours, thin and wispy clouds can sometimes be observed in the upper atmosphere.

These clouds have an ethereal feel and consist of ice crystals in very high clouds at the edge of space, typically about 75 to 85 km above the surface. The clouds are still in sunlight while the ground is darkening after the Sun sets. Meteorologists call these noctilucent clouds, which essentially translates to “night-shining” clouds.

There is no reason why these clouds could not also exist on Mars, which has a thin atmosphere. And about two decades ago, the European Space Agency’s Mars Express orbiter observed noctilucent clouds on Mars and went on to make a systematic study.

Among the many tasks NASA’s Curiosity rover does on the surface of Mars since landing in 2012 is occasionally looking up. A couple of weeks ago, the rover’s Mastcam instrument captured a truly stunning view of noctilucent clouds in the skies above. The clouds are mostly white, but there is an intriguing tinge of red as well in the time-lapse below, which consists of 16 minutes of observations.

Curiosity spies stunning clouds at twilight on Mars Read More »

ULA’s Vulcan rocket still doesn’t have the Space Force’s seal of approval

Amazon, kuiper, launch, military space, Science, Space, space force, united launch alliance, vulcan / Mike M. / February 12, 2025

ULA crews at Cape Canaveral have already stacked the next Vulcan rocket on its mobile launch platform in anticipation of launching the USSF-106 mission. But with the Space Force’s Space Systems Command still withholding certification, there’s no confirmed launch date for USSF-106.

So ULA is pivoting to another customer on its launch manifest.

Amazon’s first group of production satellites for the company’s Kuiper Internet network is now first in line on ULA’s schedule. Amazon confirmed last month that it would ship Kuiper satellites to Cape Canaveral from its factory in Kirkland, Washington. Like ULA, Amazon has run into its own delays with manufacturing Kuiper satellites.

“These satellites, built to withstand the harsh conditions of space and the journey there, will be processed upon arrival to get them ready for launch,” Amazon posted on X. “These satellites will bring fast, reliable Internet to customers even in remote areas. Stay tuned for our first launch this year.”

Amazon and the Space Force take up nearly all of ULA’s launch backlog. Amazon has eight flights reserved on Atlas V rockets and 38 missions booked on the Vulcan launcher to deploy about half of its 3,232 satellites to compete with SpaceX’s Starlink network. Amazon also has launch contracts with Blue Origin, which is owned by Amazon founder Jeff Bezos, along with Arianespace and SpaceX.

The good news is that United Launch Alliance has an inventory of rockets awaiting an opportunity to fly. The company plans to finish manufacturing its remaining 15 Atlas V rockets within a few months, allowing the factory in Decatur, Alabama, to focus solely on producing Vulcan launch vehicles. ULA has all the major parts for two Vulcan rockets in storage at Cape Canaveral.

“We have a stockpile of rockets, which is kind of unusual,” Bruno said. “Normally, you build it, you fly it, you build another one… I would certainly want anyone who’s ready to go to space able to go to space.”

Space Force officials now aim to finish the certification of the Vulcan rocket in late February or early March. This would clear the path for launching the USSF-106 mission after the next Atlas V. Once the Kuiper launch gets off the ground, teams will bring the Vulcan rocket’s components back to the hangar to be stacked again.

The Space Force has not set a launch date for USSF-106, but the service says liftoff is targeted for sometime between the beginning of April and the end of June, nearly five years after ULA won its lucrative contract.

ULA’s Vulcan rocket still doesn’t have the Space Force’s seal of approval Read More »

Rocket Report: Another hiccup with SpaceX upper stage; Japan’s H3 starts strong

ArianeGroup, Arianespace, blue origin, Commercial space, falcon 9, h3 rocket, Japan, launch, military space, rocket report, Science, Space, spacex, starship, vast / Beth Washington / February 9, 2025

Vast’s schedule for deploying a mini-space station in low-Earth orbit was always ambitious.

A stack of 21 Starlink Internet satellites arrives in orbit Tuesday following launch on a Falcon 9 rocket. Credit: SpaceX

Welcome to Edition 7.30 of the Rocket Report! The US government relies on SpaceX for a lot of missions. These include launching national security satellites, putting astronauts on the Moon, and global broadband communications. But there are hurdles—technical and, increasingly, political—on the road ahead. To put it generously, Elon Musk, without whom much of what SpaceX does wouldn’t be possible, is one of the most divisive figures in American life today.

Now, a Democratic lawmaker in Congress has introduced a bill that would end federal contracts for special government employees (like Musk), citing conflict-of-interest concerns. The bill will go nowhere with Republicans in control of Congress, but it is enough to make me pause and think. When the Trump era passes and a new administration takes the White House, how will they view Musk? Will there be an appetite to reduce the government’s reliance on SpaceX? To answer this question, you must first ask if the government will even have a choice. What if, as is the case in many areas today, there’s no viable replacement for the services offered by SpaceX?

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 flight focuses on lunar research. For the first time, Jeff Bezos’ Blue Origin space venture has put its New Shepard suborbital rocket ship through a couple of minutes’ worth of Moon-level gravity, GeekWire reports. The uncrewed mission, known as NS-29, sent 30 research payloads on a 10-minute trip from Blue Origin’s Launch Site One in West Texas. For this trip, the crew capsule was spun up to 11 revolutions per minute, as opposed to the typical half-revolution per minute. The resulting centrifugal force was equivalent to one-sixth of Earth’s gravity, which is what would be felt on the Moon.

Gee, that’s cool … The experiments aboard Blue Origin’s space capsule examined how to process lunar soil to extract resources and how to manufacture solar cells on the Moon for Blue Origin’s Blue Alchemist project. Another investigated how moondust gets electrically charged and levitated when exposed to ultraviolet light. These types of experiments in partial gravity can be done on parabolic airplane flights, but those only provide a few seconds of the right conditions to simulate the Moon’s gravity. (submitted by EllPeaTea)

Orbex announces two-launch deal with D-Orbit. UK-based rocket builder Orbex announced Monday that it has signed a two-launch deal with Italian in-orbit logistics provider D-Orbit, European Spaceflight reports. The deal includes capacity aboard two launches on Orbex’s Prime rocket over the next three years. D-Orbit aggregates small payloads on rideshare missions (primarily on SpaceX rockets so far) and has an orbital transfer vehicle for ferrying satellites to different altitudes after separation from a launch vehicle. Orbex’s Prime rocket is sized for the small satellite industry, and the company aims to debut it later this year.

Thanks to fresh funding? … Orbex has provided only sparse updates on its progress toward launching the Prime rocket. What we do know is that Orbex suspended plans to develop a spaceport in Scotland to focus its resources on the Prime rocket itself. Despite little evidence of any significant accomplishments, Orbex last month secured a $25 million investment from the UK government. The timing of the launch agreement with D-Orbit begs the question of whether the UK government’s backing helped seal the deal. As Andrew Parsonson of European Spaceflight writes: “Is this a clear indication of how important strong institutional backing is for the growth of privately developed launch systems in Europe?” (submitted by EllPeaTea)

Sign Me Up!

Falcon 9’s upper stage misfires again. The second stage of a SpaceX Falcon 9 rocket remained in orbit following a launch Saturday from Vandenberg Space Force Base, California. The rocket successfully deployed a new batch of Starlink Internet satellites but was supposed to reignite its engine for a braking maneuver to head for a destructive reentry over the Pacific Ocean. While airspace warning notices from the FAA showed a reentry zone over the eastern Pacific Ocean, publicly available US military tracking continued to show the upper stage in orbit this week. Sources also told Ars that SpaceX delayed two Falcon 9 launches this week by a day to allow time for engineers to evaluate the problem.

3 in 6 months … This is the third time since last July that the Falcon 9’s upper stage has encountered a problem in flight. On one occasion, the upper stage failed to reach its targeted orbit, leading to the destruction of 20 Starlink satellites. Then, an upper stage misfired during a deorbit burn after an otherwise successful launch in September, causing debris to fall outside of the pre-approved danger area. After both events, the FAA briefly grounded the Falcon 9 rocket while SpaceX conducted an investigation. This time, an FAA spokesperson said the agency won’t require an investigation. “All flight events occurred within the scope of SpaceX’s licensed activities,” the spokesperson told Ars.

Vast tests hardware for commercial space station. Vast Space has started testing a qualification model of its first commercial space station but has pushed back the launch of that station into 2026, Space News reports. In an announcement Thursday, Vast said it completed a proof test of the primary structure of a test version of its Haven-1 space station habitat at a facility in Mojave, California. During the testing, Vast pumped up the pressure inside the structure to 1.8 times its normal level and conducted a leak test. “On the first try we passed that critical test,” Max Haot, chief executive of Vast, told Space News.

Not this year … It’s encouraging to see Vast making tangible progress in developing its commercial space station. The privately held company is one of several seeking to develop a commercial outpost in low-Earth orbit to replace the International Space Station after its scheduled retirement in 2030. NASA is providing funding to two industrial teams led by Blue Origin and Voyager Space, which are working on different space station concepts. But so far, Vast’s work has been funded primarily through private capital. The launch of the Haven-1 outpost, which Vast previously said could happen this year, is now scheduled no earlier than May 2026. The spacecraft will launch in one piece on a Falcon 9 rocket, and the first astronaut crew to visit Haven-1 could launch a month later. Haven-1 is a pathfinder for a larger commercial station called Haven-2, which Vast intends to propose to NASA. (submitted by EllPeaTea)

H3 deploys Japanese navigation satellite. Japan successfully launched a flagship H3 rocket Sunday and put into orbit a Quasi-Zenith Satellite (QZS), aiming to improve the accuracy of global positioning data for various applications, Kyodo News reports. After separation from the H3 rocket, the Michibiki 6 satellite will climb into geostationary orbit, where it will supplement navigation signals from GPS satellites to provide more accurate positioning data to users in Japan and surrounding regions, particularly in mountainous terrain and amid high-rise buildings in large cities. The new satellite joins a network of four QZS spacecraft launched by Japan beginning in 2010. Two more Quasi-Zenith Satellites are under construction, and Japan’s government is expected to begin development of an additional four regional navigation satellites this year.

A good start … After a failed inaugural flight in 2023, Japan’s new H3 rocket has reeled off four consecutive successful launches in less than a year. This may not sound like a lot, but the H3 has achieved its first four successful flights faster than any other rocket since 2000. SpaceX’s Falcon 9 rocket completed its first four successful flights in a little more than two years, and United Launch Alliance’s Atlas V logged its fourth flight in a similar timeframe. More than 14 months elapsed between the first and fourth successful flight of Rocket Lab’s Electron rocket. The H3 is an expendable rocket with no roadmap to reusability, so its service life and commercial potential are likely limited. But the rocket is shaping up to provide reliable access to space for Japan’s space agency and military, while some of its peers in Europe and the United States struggle to ramp up to a steady launch cadence. (submitted by EllPeaTea)

Europe really doesn’t like relying on Elon Musk. Europe’s space industry has struggled to keep up with SpaceX for a decade. The writing was on the wall when SpaceX landed a Falcon 9 booster for the first time. Now, European officials are wary of becoming too reliant on SpaceX, and there’s broad agreement on the continent that Europe should have the capability to launch its own satellites. In this way, access to space is a strategic imperative for Europe. The problem is, Europe’s new Ariane 6 rocket is just not competitive with SpaceX’s Falcon 9, and there’s no concrete plan to counter SpaceX’s dominance.

So here’s another terrible idea … Airbus, Europe’s largest aerospace contractor with a 50 percent stake in the Ariane 6 program, has enlisted Goldman Sachs for advice on how to forge a new European space and satellite company to better compete with SpaceX. France-based Thales and the Italian company Leonardo are part of the talks, with Bank of America also advising on the initiative. The idea that some bankers from Goldman and Bank of America will go into the guts of some of Europe’s largest institutional space companies and emerge with a lean, competitive entity seems far-fetched, to put it mildly, Ars reports.

The FAA still has some bite. We’re now three weeks removed from the most recent test flight of SpaceX’s Starship rocket, which ended with the failure of the vehicle’s upper stage in the final moments of its launch sequence. The accident rained debris over the Atlantic Ocean and the Turks and Caicos Islands. Unsurprisingly, the Federal Aviation Administration grounded Starship and ordered an investigation into the accident on the day after the launch. This decision came three days before the inauguration of President Donald Trump, who counts Musk as one of his top allies. So far, the FAA hasn’t budged on its requirement for an investigation, an agency spokesperson told Ars.

Debris field … In the hours and days after the failed Starship launch, residents and tourists in the Turks and Caicos shared images of debris scattered across the islands and washing up onshore. The good news is there were no injuries or reports of significant damage from the wreckage, but the FAA confirmed one report of minor damage to a vehicle located in South Caicos. It’s rare for debris from US rockets to fall over land during a launch. This would typically only happen if a launch failed at certain parts of the flight. Before now, there has been no public record of any claims of third-party property damage in the era of commercial spaceflight.

DOD eager to reap the benefits of Starship. A Defense Department unit is examining how SpaceX’s Starship vehicle could be used to support a broader architecture of in-space refueling, Space News reports. A senior adviser at the Defense Innovation Unit (DIU) said SpaceX approached the agency about how Starship’s refueling architecture could be used by the wider space industry. The plan for Starship is to transfer cryogenic propellants between tankers, depots, and ships heading to the Moon, Mars, or other deep-space destinations.

Few details available … US military officials have expressed interest in orbital refueling to support in-space mobility, where ground controllers have the freedom to maneuver national security satellites between different orbits without worrying about running out of propellant. For several years, Space Force commanders and Pentagon officials have touted the importance of in-space mobility, or dynamic space operations, in a new era of orbital warfare. However, there are reports that the Space Force has considered zeroing out a budget line item for space mobility in its upcoming fiscal year 2026 budget request.

A small step toward a fully reusable European rocket. The French space agency CNES has issued a call for proposals to develop a reusable upper stage for a heavy-lift rocket, European Spaceflight reports. This project is named DEMESURE (DEMonstration Étage SUpérieur REutilisable / Reusable Upper Stage Demonstration), and it marks one of Europe’s first steps in developing a fully reusable rocket. That’s all good, but there’s a sense of tentativeness in this announcement. The current call for proposals will only cover the earliest phases of development, such as a requirements evaluation, cost estimation review, and a feasibility meeting. A future call will deal with the design and fabrication of a “reduced scale” upper stage, followed by a demonstration phase with a test flight, recovery, and reuse of the vehicle. CNES’s vision is to field a fully reusable rocket as a successor to the single-use Ariane 6.

Toes in the water … If you’re looking for reasons to be skeptical about Project DEMESURE, look no further than the Themis program, which aims to demonstrate the recovery and reuse of a booster stage akin to SpaceX’s Falcon 9. Themis originated in a partnership between CNES and European industry in 2019, then ESA took over the project in 2020. Five years later, the Themis demonstrator still hasn’t flown. After some initial low-altitude hops, Themis is supposed to launch on a high-altitude test flight and maneuver through the entire flight profile of a reusable booster, from liftoff to a vertical propulsive landing. As we’ve seen with SpaceX, recovering an orbital-class upper stage is a lot harder than landing the booster. An optimistic view of this announcement is that anything worth doing requires taking a first step, and that’s what CNES has done here. (submitted by EllPeaTea)

Next three launches

Feb. 7: Falcon 9 | Starlink 12-9 | Cape Canaveral Space Force Station, Florida | 18: 52 UTC

Feb. 8: Electron | IoT 4 You and Me | Māhia Peninsula, New Zealand | 20: 43 UTC

Feb. 10: Falcon 9 | Starlink 11-10 | Vandenberg Space Force Base, California | 00: 03 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: Another hiccup with SpaceX upper stage; Japan’s H3 starts strong Read More »