Tag: spaceflight

Brain terrain on Mars?

11:00 am

Brain terrain on Mars?
Click for original picture. For full image go here.

Cool image time! The picture to the right, cropped and expanded to post here, was taken on April 2, 2026 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled simply as a “terrain sample”, such images are usually taken not as part of any specific research project, but to fill a gap in the camera’s schedule. The camera team needs to take pictures at a regular cadence to maintain its proper temperature.

When they have such a gap, they try to find interesting things to photograph, and usually succeed. In this case we are looking at what I think the scientists dub “brain terrain,” a feature unique to Mars that is thought related to near surface ice and its sublimation, though at present the origins of brain terrain remain murky. The scale is approximately 100 meters across the width of this picture.

However, the location of this brain terrain makes any conclusions about its origin difficult.
» Read more

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Japanese company NEC initiates its own orbital tug project

9:08 am

Having won a grant from Japan’s $6.6 billion strategic fund (designed to encourage private enterprise in space), the Japanese company NEC Corporation has now begun work on its own commercial orbital tug, which it dubs an Orbital Transfer Vehicle (OTV).

Moving forward, NEC plans to conduct market feasibility studies, conceptual design, and demonstrations for OTVs by the end of fiscal year 2027 to clarify the required functions and other specifications. Following this, NEC plans to begin development of a demonstration model in fiscal year 2028, with the goal of launching it and conducting in-space demonstrations in fiscal year 2032, and aims to bring the technology to practical use in the future.

While the overall goal makes sense, the timetable seems far too slow. By the time NEC is ready with its operational OTV in 2032, at least a half dozen tugs will have been in operation for at least three to five years. Already several tugs have flown missions, with several more in the pipeline. Moreover, these companies have found less demand for tugs than expected, and have been repurposing their technology to other purposes.

Regardless, it does appear Japan is beginning to use this strategic fund as intended, to encourage the development of a private space industry, independent of its government space agency JAXA.

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Europa Clipper and Juice make simultaneous UV light observatoins of interstellar comet 3I/Atlas

8:52 am

Overview of November observations
Overview of November 2025 observations.
Click for original image.

By viewing interstellar comet 3I/Atlas when it was between the Jupiter probes Europa Clipper and Juice (on their way to Jupiter) in November 2025, the science teams for both were able to get a 360 degree view of the comet in ultraviolet wavelengths.

“As the comet passed between Juice and Europa Clipper, we were able to informally coordinate observations between the two spacecraft,” said Dr. Kurt Retherford, the principal investigator of Juice-UVS and Europa-UVS. “Crucially, we observed hydrogen, oxygen and carbon emissions. These elements are produced when gases escaping the comet’s nucleus break apart into atoms when exposed to sunlight.”

…“Observing the interstellar comet was some exciting bonus science. The resulting rare and unique dataset includes gas emissions and scattered dust,” said SwRI’s Dr. Philippa Molyneux, co-deputy principal investigator for the Juice-UVS instrument. “This was the first time we’ve had simultaneous direct views of a comet’s coma of escaping gas from two directions. Europa Clipper showed us the night side of the comet, with a great deal of scattered dust, while Juice imaged mostly glowing gas on the day side.”

…The researchers found higher levels of carbon emissions from 3I/ATLAS than expected early on, especially in comparison to typical comets from our solar system, corroborating similar findings through other observations about the interstellar comet’s origin and composition. Observing the trends of emissions over several days revealed how the ratios of these molecules changed and how the comet evolved during its journey through our solar system.

These results confirm once again that while Comet 3I/Atlas is from outside our solar system and has some unique features, it is still remarkably similar to ordinary comets found within our solar system.

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Pharmaceutical company to use Varda’s capsules to manufacture heart drugs in space

8:34 am

Varda's W-5 capsule after landing today
Varda’s fifth capsule after landing on January 29, 2026

The pharmaceutical company United Therapeutics Corporation has purchased space on an unspecified number of future Varda’s recoverable capsules so that it can manufacture pulmonary drugs in space.

Through the collaboration, Varda and United Therapeutics will conduct pharmaceutical processing of small molecule medicines for pulmonary disease aboard Varda’s orbital manufacturing and reentry platform during multiple missions to low Earth orbit.

The companies will utilize microgravity’s influence on the structure and crystallization properties of therapeutic compounds in pursuit of novel formulations that may improve stability, bioavailability, and other delivery characteristics. The first compounds to be analyzed onboard Varda spacecraft will likely be focused on therapies for patients living with life-threatening pulmonary diseases.

Varda has a deal in Australia to land 20 more capsules through 2028. This deal helps fill the payload space on those capsules.

As I have noted repeatedly, there is money to be made manufacturing drugs in weightlessness for later sale back on Earth, a reality that NASA has blocked on ISS for decades. Varda is now grabbing that market, which is also why a lot of investment capital has become available for a whole slew of proposed competing recoverable capsule companies.

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Chinese pseudo-company launches its expendable Zhuque-2 rocket

11:20 pm

The Chinese pseudo-company Landspace successfully placed an experimental payload into orbit today (May 14th in China), its expendable Zhuque-2 rocket lifting off from the Jiuquan spaceport in northwest China.

Video of the launch (found by BtB’s stringer Jay) can be seen here. Zhuque-2 was the first methane-fueled rocket to reach orbit, but it is not reusable, as is Landspace’s larger Zhuque-3 rocket that has made one failed attempt to land its first stage. The company hopes to try again before the summer.

The leaders in the 2026 launch race:

56 SpaceX
26 China
8 Russia
6 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 56 to 47.

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Corroding glacial features inside Martian crater

11:25 am

Overview map
Glacier country in the Martian northern mid-latitudes.

The corroding glacial floor of a Martian crater
Click for original image.

Today’s cool image gives us another nice example of the ample availability of near surface ice on Mars, even if it might take a bit of processing to extract it from the dust and soil. The picture to the right, rotated, cropped, and reduced to post here, was taken on March 31, 2026 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The picture captures in detail most of the floor of a 5.8-mile-wide unnamed crater, located in the northern mid-latitudes of Mars, in a 2000-mile-long strip I like to call glacier country, because practically every image taken there shows extensive glacial features. The white dot on the overview map above shows the location within that strip, with the inset showing the full crater, as well as the surrounding terrain.

The softness of this landscape strongly suggests a topsoil well impregnated with ice. The crater’s rim is itself very soft and subdued, suggesting melting and sublimation over time.

The material in the floor of the crater resembles peeling paint, which in this case suggests the ice there has been sublimating away as well. Nonetheless, there remains a lot under the surface. Future Martian colonists will certainly come to this region to gather ice for their own purposes.

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New cost estimate for Trump’s Golden Dome exceeds $1 trillion over 20 years

10:15 am

According to the Congressional Budget Office’s (CBO) new estimates, the cost to build Trump’s proposed Golden Dome defense plan will be about $1.2 trillion over the next 20 years, double what the CBO predicted last year and more than six times what the program’s head has predicted.

The Congressional Budget Office issued an updated estimate today of the cost of President Trump’s Golden Dome missile defense system. Lacking detailed data from the Administration, CBO based its analysis on the capabilities called for in Trump’s January 2025 Executive Order and concluded the total cost over 20 years is $1.2 trillion, about twice its estimate last year, with the bulk of it for Space-Based Interceptors.

Trump issued the Iron Dome for America Executive Order on January 27, 2025, seven days after his second term began. He soon renamed it Golden Dome in part to distinguish it from Israel’s Iron Dome system which has more limited capabilities. Trump appointed Gen. Michael Guetlein to lead the project and in an Oval Office meeting on May 20, 2025, said it would cost $175 billion and be completed in three years, before he leaves office.

By then CBO had estimated the cost at $524 billion based on information available at the time.

Guetlein has since raised his estimate to $185 billion, but it is widely viewed as far too low.

Several important points: First, the CBO’s cost estimates are usually wrong, in either direction, which means the cost could be a lot less, or a lot more. Odds are that in this case its estimate is trending in the right direction. Guetlein’s cost estimate is absurdly too low.

Second, the high cost helps explain why a lot of investment money is pouring into a lot of new space startups, for both rocket and satellite companies. Wall Street sees the federal government spending a lot of money on Golden Dome, and wants to get into the action. For the same reason this is why a lot of space companies have shifted their focus from civilian projects to the military.

Finally, the idea of Golden Dome is perfectly reasonable, as its concept has already been proven both by the U.S.’s Patriot missile system and Israel’s Iron Dome. The implementation however is going to be bad, because the people in Washington being asked to do it have a terrible track record. They routinely waste money and manage projects badly.

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ESA announces new round of funding for new rocket companies

9:28 am

Capitalism in space: The European Space Agency (ESA) yesterday announced a new round in its Boost! program to provide new startup rocket companies funding.

The new round will accept new submissions through 2028. The program is designed to encourage the development of private and independent rocket companies, competing for market share, with the added ability to provide ESA its needed launch services. What makes this ESA program different than all its previous rocket programs is that ESA does not own or control the rockets. It is helping to get these companies started, and will simply then be a customer buying the product from them once operation. Ownership will belong to the companies, not ESA.

To emphasize the ownership point, to get funding under this program “requires private co-funding. For every euro invested by ESA in commercial space businesses, often more than five euros are leveraged from private investors.”

So far ESA has provided funding to eleven different European startups, including Isar Aerospace, Rocket Factory Augsburg, and PLD, all three of which hope to make their first orbital launch this year. This new round is being offered to these companies and any new ones that might come forward. Of the 110 million euros so far allocated 20 million euros remains available for distribution.

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AST SpaceMobile reaffirms its goal to launch 45 Bluebird satellites by the end of ’26

8:59 am

Despite the launch failure last month by Blue Origin’s New Glenn rocket, causing the loss of its satellite, AST SpaceMobile in its most recent quarterly report this week reaffirmed its goal to get 45 Bluebird satellites into orbit by the end of 2026.

In AST SpaceMobile’s 10-Q filed with the SEC on Monday, the company said the loss is expected to be in line with the carrying value of the satellite, in the range of $155 million to $160 million. The company plans for an asset write-off in the second quarter of 2026. The company also said in the 10-Q it had launch insurance coverage that covered a portion of the satellite and launch costs and has filed claims.

“At the end of the day, remember, we have 33 satellites in advanced stages of production at the factory. So it was a loss, we’re on to the next,” Wisniewski told investors. He added that the company is working closely with Blue Origin and is “optimistic” about New Glenn returning to the launch pad soon.

The company’s next launch is with SpaceX on a Falcon 9 rocket that will launch three satellites — BlueBirds 8, 9 and 10. Wisniewski confirmed the company has contracted launch capacity to meet its target of deploying 45 satellites by the end of this year. He also mentioned that five BlueBirds would fit in a United Launch Alliance Vulcan configuration, mentioning the company has been developing other heavy launch providers outside of SpaceX and Blue Origin.[emphasis mine]

The highlighted sentence suggests the company is also negotiating new contracts with both Arianespace’s Ariane-6 rocket and India’s LVM3 rocket. It has already used the latter on one launch successfully.

Nonetheless, the only company with the capability of ramping up enough launches quickly this year to meet this goal will be SpaceX. Expect that company to get more Bluebird launches in 2026.

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The 12th Starship/Superheavy test orbital flight now scheduled for May 19, 2026

8:46 am

Starship/Superheavy (version 3) on launchpad
Starship/Superheavy (version 3) on launchpad

SpaceX yesterday announced that the 12th orbital test flight of its Starship/Superheavy rocket is now scheduled for May 19, 2026, with a launch window opening at 5:30 pm (Central).

The mission will be also be the first flight of what SpaceX calls Version 3 of both the booster and the spaceship, will include the first use of the Raptor-3 engine, and the first use of a completely redesigned launchpad.

The flight test’s primary goal will be to demonstrate each of these new pieces in the flight environment for the first time, with each element of the Starship architecture featuring significant redesigns to enable full and rapid reuse that incorporate learnings from years of development and test.

The booster’s primary test objective will be executing a successful launch, ascent, stage separation, boostback burn, and landing burn at an offshore landing point in the Gulf of America. As this is the first flight test of a significantly redesigned vehicle, the booster will not attempt a return to the launch site for catch.

The Starship upper stage will target multiple in-space and reentry objectives, including the deployment of 22 Starlink simulators, similar in size to next-generation Starlink satellites. The last two satellites deployed will scan Starship’s heat shield and transmit imagery down to operators to test methods of analyzing Starship’s heat shield readiness for return to launch site on future missions. Several tiles on Starship have been painted white to simulate missing tiles and serve as imaging targets in the test. The Starlink simulators will be on the same suborbital trajectory as Starship. A relight of a single Raptor engine while in space is also planned.

As an added potential test-to-failure, the company has also removed a single heat shield tile to test how Starship performs under this failure scenerio. The flight plan will be the same as the previous flights, designed to come down in the Indian Ocean.

A detailed description about the upgrades to Starship, Superheavy, and the ground systems can be found here.

The company will broadcast the launch live, which I will embed on Behind the Black once available.

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SpaceX kind of confirms rumor it is considering purchasing 136,000 acres in Louisiana

8:01 am

Pecan Island SpaceX facility?

In a tweet yesterday SpaceX sort of confirmed the rumor reported here last week that it is considering purchasing a giant 200-plus square mile plot (about 136,000 acres) on the south coast of Louisiana near the unincorporated town of Pecan Island.

It’s no secret that we intend to launch Starship a lot, targeting thousands of flights per year. That cadence will require the ability to launch from many different locations, so we are constantly exploring to find viable sites to expand Starship operations in the future, both domestically and internationally

This comment was in response to a tweet touting this rumor. Note that SpaceX’s comment is somewhat vague. It says the company is searching for additional launch locations for Starship, but does not say specifically if this Louisiana plot is one of them.

I suspect it is, based on all the known facts. The company is just being coy, likely because negotiations are still on-going. If so, the tweet tells us that if purchased SpaceX intends to use the site as a future spaceport. And because of its size, it will likely also install Raptor-3 engine test stands as well as its planned data-center satellite manufacturing, consolidating some operations in one location.

Hat tip BtB’s stringer Jay.

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Curiosity looks closely at the broken slab that had been stuck on its drill bit

12:37 pm

The rock Atacama
Click for original image.

As expected, the science team for the Mars rover hasdecided before moving on it would take a close look at the 28 pound slab of rock that had been stuck on its drill bit and when finally dropped free broken into several pieces when it hit the ground.

The top picture to the right, cropped and reduced to post here, shows that entire rock, labeled Atacama by the science team. The two insets below are close-ups of the delicate layering at the rock’s left edge as well as the drill hole itself. From team’s update today:

The highest-priority activities after liberating the drill included imaging the drill with Mastcam and ChemCam RMI, and imaging into the now-empty drill hole with MAHLI (the image above). The science team made the most of the freshly-broken surfaces created when Atacama fell back to Mars, and the freshly-exposed sand once hidden underneath Atacama.

The exposed sand is off camera, to the right. Expect a paper published about that sand, buried likely for millions of years, sometime in the next year or so.

The delicate flutes at the rock’s left edge are somewhat common rock features seen by Curiosity, made possible by Mars’ thin atmosphere and its one-third Earth gravity. On Earth the gravity and weather generally destroys such things. On Mars the lack of violent weather and light gravity allows them to form, and the thin wind even helps in their formation.

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SpaceX and Google negotiating deal to launch data centers into space

11:56 am

Though few details have been confirmed, according to the Wall Street Journal SpaceX and Google are in advanced negotiations to launch data centers into space.

We don’t know if these data centers will be part of a SpaceX/Google partnership, or whether Google is merely negotiating a SpaceX launch deal to place its own data centers in orbit. Nor do we know if this deal will use SpaceX’s Falcon rockets, or is aimed at using Starship when operational. Neither would surprise me. Nor would it be surprising if both occur.

The story is in linked to SpaceX’s impending initial public stock offering (IPO), expected to the biggest in history.

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OHB joins Dassault’s project to build a reusable mini-shuttle

9:28 am

Vortex
Vortex-S with service module attached. Click for original image.

The German aerospace company OHB has now joined with France’s Dassault Aviation in its project to build Vortex, a reusable mini-shuttle that could be used to supply cargo to the future commercial space stations presently under development.

An initial subscale demonstrator of the spaceplane, called the VORTEX-D, is being developed by the company with support from the French Ministry of the Armed Forces. During a 25 June 2025 hearing of the French National Assembly’s Committee on National Defence and the Armed Forces, it was revealed that the demonstrator is expected to be launched in 2028 and has a total project cost of €70 million, with Dassault providing more than half of the funding and the remainder coming from the French government.

The VORTEX-S is expected to follow the VORTEX-D demonstrator. This larger, more complex variant will be developed in partnership with OHB following the finalisation of the 11 May agreement, as the companies seek to secure ESA backing for the project. According to the release announcing the partnership, discussions are also underway with other major European space companies to “expand the team.”

Dassault will remain the lead contractor, building the mini-shuttle. OHB will build the service module. The hope is that later versions of Vortex could also ferry crews to and from space.

This project started in 2023, and initially hoped to do the first test mission to ISS in 2026. That test flight is now targeting 2029, with later missions slipping beyond 2031 and now targeting missions to one of the new stations replacing ISS.

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Two overnight launches from SpaceX and China

9:15 am

Both SpaceX and China successfully completed launches since yesterday. First, SpaceX launched a new group of satellites for the National Reconnaissance Office, its Falcon 9 lifting off from Vandenberg Space Force Base in California. For security reasons, the number of satellites launched was not revealed.

The first stage completed its 9th flight, landing on a drone ship in the Pacific.

Next China launched another set of Qianfan (SpaceSail) internet satellites into orbit, its Long March 6A rocket lifting off from its Taiyuan spaceport in northeast China. Though China’s stage run press did not reveal the number of satellites launched, past Long March 6A launches of this constellation have placed 18 satellites into orbit. If so, there are now 155 Quinfan satellites in space, out of a planned constellation of as many as 10,000. The first phase of the constellation however only requires 648, which China hopes to reach before the end of the year.

The state-run press also did not reveal where the rocket’s lower stages (using very toxic hypergolic fuels) crashed inside China.

The leaders in the 2026 launch race:

56 SpaceX
25 China
8 Russia
6 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 56 to 46.

SpaceX hopes to complete another launch later today, carrying a Dragon cargo capsule to ISS (on its sixth flight), but weather might force a scrub. UPDATE: Scrubbed due to weather, rescheduled for May 13, 2026.

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Springtime on the residual icecap of the Martian south pole

11:42 am

Weird hatchwork at the Martian south pole
Click for original image.

Cool image time! The picture to the right, cropped and rotated so that north is to the top, was taken on March 28, 2026 by the high resolution camera of Mars Reconnaissance Orbiter (MRO).

It shows what the science team labels a “south polar residual cap site.” The location is about 200 miles from the Martian south pole, well within the south polar ice cap. A second picture of this same spot was taken only a few days later, and was labeled “bright and dark fans on patterned ground.” With the second image the science team added their nickname for this location, “Troy,” which makes referencing it easier.

The hatchwork is the mystery here. In fact, the scientists have been monitoring this geology since 2020 to see if there have been any changes, either long term or seasonally. Almost certainly they have spotted seasonal changes, as indicated by the hatchwork itself and explained below, but I don’t access to the higher resolution images that would show any major modifications on a larger scale.
» Read more

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China launches Tianzhou freighter to Tiangong-3 station

8:33 pm

China today (May 11th in China) successfully launched the tenth Tianzhou freighter to its Tiangong-3 space station, its Long March 7 rocket lifting off from its coastal Wenchang spaceport.

China hopes to keep this cargo freighter in orbit for a full year, as part of its effort to reduce the number of cargo missions per year while expanding the capabilities of its spacecraft and station.

The leaders in the 2026 launch race:

55 SpaceX
24 China
8 Russia
6 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 55 to 45.

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Vast signs deal with Lithuania

10:03 am

Haven-1 with docked Dragon capsule
Artist rendering of Haven-1 with docked
Dragon capsule

The space station startup Vast earlier this week signed an agreement with Lithuania to work together on future space missions, either to ISS or its Haven-1 single-module station scheduled for launch next year.

Under the agreement, Vast and Innovation Agency Lithuania will explore opportunities for joint scientific research activities either in the International Space Station National Lab or Haven-1, scheduled to be the world’s first commercial space station, launching in 2027. The partnership also includes plans to further develop educational programs in Lithuania and deepen engagement with local industry.

This deal is similar to Vast’s earlier deals with the European Space Agency, the Czech Republic, Colombia, Uzbekistan, Japan, and the Maldives. All are structured so that should Haven-1 reach orbit and be proven operational and safe for occupancy, these countries could consider sending their own astronauts on missions there. All thus show there is an international market for a private space station, a market that Vast is working hard to capture.

In other space station news, Voyager Technologies, the lead company building the Starlab station, released its 2026 first quarter fiscal report, indicating a solid financial position resulting from its diversification into military-based space applications. Though the report notes that “Starlab does not generate revenue today, nor is expected to generate revenue in the near term,” the company’s overall strength lays a strong foundation for that station’s eventual construction.

In my rankings below of the five stations under development, these two stations remain essentially tied for first place, with Axiom a close third.
» Read more

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Katalyst completes final ground testing of its Swift rescue spacecraft

8:01 am

Katalyst's proposed Swift rescue mission
Katalyst’s proposed Swift rescue mission.
Click for original image.

The orbital servicing startup Katalyst has now successfully completed the final ground testing of its Swift rescue spacecraft, dubbed LINK, that it hopes will be able to catch the Gehrels-Swift Telescope and raise its orbit, thus saving the telescope.

During vibration testing at NASA Goddard, engineers mimicked the shaking the spacecraft will experience during its launch from a Northrop Grumman Pegasus rocket. In the footsteps of Swift itself and NASA’s upcoming Nancy Grace Roman Space Telescope, the Katalyst team also used NASA Goddard’s Space Environment Simulator for thermal vacuum testing.

Once the air was pumped out of this 27-foot-wide chamber, LINK experienced space-like hot and cold temperature extremes. The team also practiced firing the satellite’s three xenon-powered ion thrusters and deployed one of the arms.

After some more testing in Arizona, the spacecraft will be integrated in June onto Northrop Grumman’s Pegasus rocket — the last one in its inventory — and launched later that month.

Katalyst has never done this before. It was preparing LINK as a demo mission when NASA requested bids for saving Swift. It proposed reconfiguring LINK for that purpose, and won the contract in September 2025, only eight months ago.

If this mission succeeds it will be a big feather in Katalyst’s cap.

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Rover startup Lunar Outpost raises $30 million in investment capital

10:08 am

The lunar rover startup Lunar Outpost revealed yesterday that it has raised $30 million in private investment capital in its latest funding round.

Lunar Outpost, the leader in off-planet mobility and in-space infrastructure, today announced a $30M Series B led by Industrious Ventures, with participation from Type One Ventures, Eniac Ventures, Promus Ventures, Reliable Equity, and others. The capital injection accelerates production and deployment of the company’s advanced robotics and mobility platforms as it scales the critical industrial layer required for a permanent human presence in space.

The company started out competing for NASA’s initial planned contract to build a manned lunar rover, proposing its “Eagle” rover and even signing a contract with SpaceX to deliver it to the Moon on Starship. Since then it has developed and successfully tested an autonomous excavator, dubbed Owl, while expanding its product line beyond rovers.

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Rocket Lab gets big launch contract for both its Electron and new Neutron rocket

9:19 am

Artist's rendering of the Neutron first stage deploying its second stage
Artist’s rendering of Neutron’s first stage fairings opening
to deploy the payload with the second stage engine.

Rocket Lab announced yesterday that it has won a big new launch contract with an undisclosed customer for three launches of its Electron rocket and five launches of its new Neutron rocket.

The multi-launch agreement includes five dedicated Neutron launches and three dedicated Electron launches baselined to launch between 2026 and 2029. The missions will lift-off from both Rocket Lab Launch Complex 1 in New Zealand and Rocket Lab Launch Complex 3 in Virginia. Pricing for these launches aligns with Rocket Lab’s average selling price for Neutron and Electron. The remaining terms of the deal are undisclosed.

Based on the known average launch prices for these rockets, this deal is likely worth somewhere between $250 million to $300 million. That a customer was willing to purchase five launches of Neutron before the rocket has even launched is also a strong statement of confidence in Rocket Lab itself. The company hopes to do the first test launch of Neutron before the end of this year.

Rocket Lab also made a slew of other announcements yesterday. The company will be partnering with Anduril as part of its 20-launch contract with the War department to use its suborbital HASTE version of its Electron first stage for hypersonic testing. The deal involves three of those twenty launches.

The company also announced a partnership with Raytheon to “demonstrate advanced capabilities for the United States Space Force’s Space Based Interceptor program.” Rocket Lab also revealed it is acquiring the California robotic company Motiv Space Systems that has built equipment used on the Mars rover Perseverance.

Rocket Lab might not be as big as SpaceX, but it has unquestionably been as successful in its own way.

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Louisiana state senator: Two unnamed aerospace companies are bidding for major land purchase

8:55 am

Pecan Island SpaceX facility?

In response to the story earlier this week that SpaceX might be acquiring a 200-plus square mile patch of land near Pecan Island on the southern coast of Louisiana, a state senator has now confirmed that two unnamed aerospace companies have been talking with landowners about a possible purchase.

State Sen. Bob Hensgens, R-Abbeville, said he knows of two companies — he did not reveal if it is Elon Musk-owned SpaceX or Jeff Bezos’ Blue Origin — that have reached out to landowners in coastal Vermilion and Cameron parishes about a possible acquisition. “I know both companies are trying to find property in southwest Louisiana,” Hensgens said. “I know from people in the parishes that the companies have made outreach in the area.”

If so, we might actually have a bidding war for this property. Note however that nothing has yet been confirmed, including the names of the companies involved. The article at the link however provides some background into the 136K acre plot owned by Exxon, and how it might now be for sale. It also reports that a number of legislators (not Hensgens) have signed non-disclosure agreements about the negotiations.

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Testing new high speed rotors for the next generation of Mars helicopters

8:28 am

Ingenuity with missing blade
Ingenuity with its missing blade, at its final resting place on Mars.
Click for original image.

Engineers from JPL and the aerospace company AeroVironment have been testing a new set of high speed rotors that they hope to use on the next generation Mars helicopters, designed to increase their payload capacity by as much as 30%.

The rotors of Ingenuity — the first helicopter to fly on Mars — never spun faster than 2,700 rpm, because at faster speeds it would be approaching the speed of sound (on Mars), when unpredictable things could happen. Engineers are pushing those limits with these new rotors, in a chamber mimicking the thin Martian atmosphere.

The test engineers had taken the precaution of lining part of the chamber with sheet metal in case the blades broke apart during the supersonic experiment. From a control room a few yards away from the chamber, the team watched displays showing data and a view inside the chamber as the rpm climbed as high as 3,750. At that rate, the tips were traveling at Mach 0.98 [just under the Martian speed of sound]. Then the engineers activated a fan inside the chamber that pelted the rotors with headwinds. After each run, they increased in wind velocity for the next run.

The team pushed rotor tip speeds to Mach 1.08, boosting the Mars vehicle’s lift capability by 30%. This breakthrough allows future missions to support heavier scientific payloads, including advanced sensors and larger batteries for extended flight. Next the team tried their luck with the two-bladed SkyFall rotor. Because it is slightly longer than the three-bladed version, only 3,570 rpm was needed to achieve the same near-supersonic speed at the rotor tips prior to introducing the headwinds.

NASA administrator Jared Isaacman has said he wants to send a fleet of helicopters to Mars in 2028, on that first nuclear-powered mission. Whether or not that mission happens as he proposed, there is ample evidence scientists plan on sending more helicopters there in the next few years (see here, here, here). These tests lay the groundwork for those future missions.

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Paraguay becomes the 67th nation to sign Artemis Accords

8:01 am

Artemis program logo

Paraguay yesterday became the 67th nation to sign Artemis Accords, continued the flood of smaller third world nations that have signed up in the last few weeks following the completion of the Artemis-2 mission around the Moon.

The remarks of NASA administration Jared Isaacman in connection with this event I find most tantalizing:

“They join an ever-growing coalition of like-minded nations committed to the peaceful, transparent, and responsible exploration of space. Established by President Trump in his first term, the Artemis Accords provided the principles for how we explore the Moon, Mars, and beyond. Now, with his national space policy, we are putting the Artemis Accords into practice with our Moon Base. We are creating opportunities for all Artemis Accords signatories, including Paraguay, to join us on the lunar surface and advance our shared objectives in this next era of exploration.” [emphasis mine]

While that national space policy [pdf] accepts the Outer Space Treaty’s limitation on establishing American law on other worlds, including property rights, it also makes its first goal that of promoting private enterprise.
» Read more

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Juno flies past the Jupiter moon Thebe

11:07 am

Jupiter's moon Thebes
Click for original image.

Though the Jupiter orbiter Juno is in its final orbits as it is running out of fuel, on May 1, 2026 it did a close fly-by of the 50 by 72 mile-wide Jupiter moon Thebe, getting within 3,100 miles.

The picture to the right, cropped and expanded to post here, is the best image released from that fly-by. It is very comparable to a photo taken by the Galileo orbiter on January 4, 2000. Both show the very large crater, dubbed Zethus.

The picture was taken by Juno’s Stellar Reference Unit (SRU) camera, designed not to do science but to “image star fields for navigation.” Thus, the picture is somewhat fuzzy, and was pointed poorly so the moon is on the far right, almost off camera.

It is very unclear how much longer Juno will function. It has apparently survived attempts by the Trump administration to zero out its operating budget, but there have been indications that its fuel supply is low.

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Multiple Russian, Chinese, and American satellites in maneuvering dance in orbit

9:41 am

Three different articles in the aerospace media today document multiple maneuvers by multiple military satellites from Russia, China, and America, either doing proximity operations near each other or moving close to another country’s satellites to spy on them.

This article in space.com describes the rendezvous operations of Russia’s Cosmos 2581, 2582, and 2583.

The satellites, known as COSMOS 2581 and COSMOS 2583, got within just 10 feet (3 meters) or so of each other on April 28, according to COMSPOC, a Pennsylvania-based space situational awareness software company. “This wasn’t a coincidental pass — COSMOS 2583 performed several fine maneuvers to maintain this tight configuration,” COMSPOC wrote in a May 1 post on X, which featured an animation of the rendezvous.

The two satellites and a third one, COSMOS 2582, launched to low Earth orbit in February 2025 atop a Soyuz rocket. According to COMSPOC, all three of them were involved in the recent rendezvous and proximity operations (RPO), as was “Object F,” a subsatellite previously deployed by COSMOS 2583.

Then russianspaceweb.com had two different articles describing different similar operations. First, a set of satellites launched in February 2026 appeared to be testing operations in very low orbit, illegally transmitting data using frequencies that the International Telecommunications Union (ITU) allocates for amateur radio operations.

Finally, the website reported a complex dance between Russian, American, and Chinese satellites in geosynchronous orbit.

Almost immediately after entering the geostationary orbit, Kosmos-2589 was “approached” by a presumed American inspector satellite, officially known as USA-325. On April 19, 2026, the US satellite, itself drifting eastward relative to the geostationary position and the Earth’s surface, seemingly overshot Kosmos-2589, but once the Russian satellite stabilized at 98 East longitude, USA-325 stopped and returned. By around April 28, 2026, … one approach under favorable lighting conditions for the “inspector” was within 13 kilometers from Kosmos-2589, according to a team of observers from Exton, PA, cited by COMSPOC.

In turn … Kosmos-2589 essentially occupied a position registered by China under designation CHNSAT-98E, with three Chinese commercial and military satellites deployed in relative vicinity of that location.

… Moreover, in April 2026, China’s presumed inspector satellite — TJS-10 — pre-positioned itself at 92.4 degrees East longitude after an easterly drift, which would put it on a rendezvous course with Kosmos-2589 at 98.0 East longitude. Instead, the Chinese satellite stopped its drift with a maneuver on May 1, 2026, which “fixed” it in a geostationary orbit at 92.4 degrees East longitude, in the vicinity of the US AEHF military satellite, which carries high-security communications of the US military and its allies.

With this last story, we have this almost absurd situation: The U.S. satellites are spying on Russian satellites, which are spying on Chinese satellites, which are spying on American satellites.

All this maneuvering however indicates once again that the ability of commercial satellites to rendezvous with other objects — either to de-orbit space junk or repair damaged satellites — is only going to get better. The military might control these capabilities now, under a veil of secrecy, but such capabilities always leak out into the private sector shortly thereafter.

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Lockheed Martin fights request to ease 2018 restrictions on Northrop Grumman’s solid rocket business

8:58 am

A legal fight between Lockheed Martin and Northrop Grumman has broken out over Northrop Grumman’s recent request to the Federal Trade Commission (FTC) to ease a 2018 consent order that restricts Northrop Grumman’s ability to market its solid rocket motors (SRM).

On April 2, Northrop petitioned the Federal Trade Commission to drop a 2018 consent order helmed when Northrop acquired solid rocket motor maker Orbital ATK. The consent agreement requires Northrop to supply SRMs to its competitors in the missile market on a non-discriminatory basis and to firewall its SRM business away from its other operations.

At the time, the FTC believed the measure was necessary due to Northrop’s status as a prime contractor and Orbital ATK’s position as one of only two American makers of solid rocket motors.

Northrop is not a major manufacturer in the American missile space, which is dominated by Raytheon and Lockheed. However, if the order is dropped, Northrop will be able to vertically integrate its solid rocket motor business with any munitions the company designs in the future — including potentially prioritizing SRM supplies for Northrop over competitors, Lockheed stated in a response to the petition.

This consent order has prevented Northrop from marketing its solid-fueled rockets openly. Instead, it appears it forces the company to sell to its competitors, such as Lockheed, who then garners the big profits in marketing them. That order I think has also limited Northrop’s ability to use its boosters for other purposes, such as launching satellites.

Overall it appears this consent order has been very counter-productive, in hindering competition in the American solid-fueled rocket industry. At present there is a shortage of production capacity in the U.S., so much so that the Italian rocket company has moved in to market its own solid-fueled rockets here. In fact, it is selling its rockets to Lockheed and Raytheon, which suggests Northrop is entirely justified in asking to be released from this order.

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Indian rocket startup Skyroot raises $60 million in private investment capital

8:37 am

Even as it prepares for the first orbital launch attempt of its Vikram-1 rocket, the Indian rocket startup Skyroot has raised $60 million in private investment capital in a recent funding round, bringing the total raised by the company to $160 million.

The startup announced it had raised $60 million at a valuation of $1.1 billion prior to the funding. The round was co-led by early Google investor Ram Shriram’s venture capital firm, Sherpalo Ventures, and Singapore’s sovereign wealth fund, GIC. New investors in the round include funds managed by BlackRock, Playbook Partners, Shanghvi Family Office, and others. Existing investors that also participated in the round include the founders of Greenko Group and Arkam Ventures.

The company hopes to launch Vikram-1 in about two months, though no specific launch window has been announced. The rocket is presently being shipped to India’s Sriharikota spaceport.

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Will Canada’s Telesat really complete its Lightspeed constellation by 2028?

11:26 am

According to the most recent financial report from the Canadian satellite communications company Telesat, it expects its Lightspeed low-Earth-orbit (LEO) satellite constellation to be launched and operational by 2028.

During the first quarter, Telesat invested $171 million into the Lightspeed program, reflecting $19 million in operating expenses and $152 million in capital expenditures, bringing its total investment to date to approximately $2.7 billion.

The company reported advancing through several technical milestones in early 2026. “During the quarter, we held further design reviews with our satellite and launch vehicle dispenser manufacturers and progressed our work on user terminals, network and satellite operations software development, and ground station deployments,” noted Telesat President and CEO Dan Goldberg.

The company confirmed it remains fully funded, utilizing cash on hand and existing financing facilities, to reach full global commercial service around the end of the first quarter of 2028.

At the moment however the company has launched no satellites in this LEO constellation. Moreover, in a recent amendment to its FCC application, the company reduced the size of the constellation from 1,671 satellites to only 300, with no explanation.

We shall see what happens. My instincts sense a bit of blarney here. This constellation will likely launch, but I think the company’s proposed schedule is questionable.

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Curiosity unintentionally picks up a rock slab

11:15 am

Sequence showing slab picked up and then dropped
Click for movie. Original images found here, here, here, and here.

In their latest drilling campaign using the drill on the Mars rover Curiosity, the science team picked up a big surprise that could have been a serious problem, but turned out all right in the end. When they tried to extract the drill from the hole, the drill instead stayed stuck to the rock, and picked the whole rock up instead.

The four images to the right show the sequence, sourced from here, here, here, and here.

On April 25, 2026, Curiosity drilled a sample from a rock nicknamed “Atacama,” which is an estimated 1.5 feet in diameter at its base, 6 inches thick and weighs roughly 28.6 pounds (13 kilograms). When the rover retracted its arm, the entire rock lifted out of the ground, suspended by the fixed sleeve that surrounds the rotating drill bit. Drilling has fractured or separated the upper layers of rocks in the past, but a rock has never remained attached to the drill sleeve. The team initially tried vibrating the drill to shake off the rock, but saw no change.

Then, on April 29, they tried reorienting Curiosity’s robotic arm and vibrating the drill again. Imagery in the GIF shows sand falling from Atacama, but the rock stayed attached to the rover.

Finally, on May 1, Curiosity’s team tried again, tilting the drill more, rotating and vibrating the drill, and spinning the drill bit. The team planned to perform these actions multiple times but the rock came off on the first round, fracturing as it hit the ground.

Had they not been able to release the rock it could have seriously impacted the mission, even ended it.

As noted by the science team in their own update today about this situation:

Future activities involve wrapping up the drill campaign on Atacama and, nominally, seeking a more firmly rooted drill target in order to collect drill tailings for analysis, which were lost from Atacama as part of the effort to dislodge the drill bit from the rock.

In other words, they are going to have hunt around for a better drill spot, as they really do want to study some drill samples at this location. They have left the boxwork area and have moved uphill closer to the pure sulfite unit, and want to see how the geology has changed.

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