Tag: NASA

Endurance capsule splashes down safely, returning four astronauts from ISS

8:56 am

SpaceX’s Endurance Dragon capsule successfully splashed down off the coast of California this morning, returning four astronauts from ISS after a five month mission.

I have embedded the live stream below. As of posting the capsule was about to be lifted from the water and placed in its nest on the recovery ship.

Once again it is important to note that this recovery is being done entirely by a private company and its employees. Once Endurance undocked from ISS NASA had no part to play. It purchased the ride from SpaceX, and SpaceX is providing the service.
» Read more

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Sending Juno to fly past interstellar comet 3I/Atlas?

10:42 am

3I/Atlas as seen by Hubble on July 21, 2025
Hubble’s most recent image of comet 3I/Atlas.
Click for original image.

It’s all clickbait! In what appears to be an example of silliness, a scientist, Avi Loeb of Harvard, has proposed repurposing the Jupiter orbiter Juno by using its remaining fuel and its main engine (unused since 2016 because it is feared it will explode if ignited) to send the spacecraft on a path allowing it to fly past the interstellar comet 3I/Atlas that is presently zipping through out solar system.

Not surprisingly, a politician, congresswoman Anna Paulina Luna (R-Florida), immediately latched onto this idea to garner her own publicity.

Loeb believes Juno, which is scheduled to plunge into Jupiter’s atmosphere at the end of its mission in Sept. 2025, could be repurposed. He suggests using its remaining fuel to redirect it toward 3I/ATLAS when the object passes within about 34 million miles of Jupiter in March 2026.

Florida Congresswoman Anna Paulina Luna has backed the proposal in a letter [pdf] to interim NASA Administrator Sean Duffy, urging the agency to explore extending Juno’s mission. “It is recommended that NASA conduct a study to assess how much fuel is left in Juno’s engine, and I support an extension of the Juno mission at least until mid-March 2026 at a cost of about $15M per 6 months from the current expiration date of mid-September 2025,” Luna wrote.

The problem with this idea is that it isn’t realistic. Juno really doesn’t have sufficient fuel, and as I mentioned, its main engine is suspect, so suspect that the science team decided in 2016 to never use it again, thus leaving Juno in a higher than planned orbit that required twice as much time at Jupiter to get the same work done.

There is also one more reason to doubt Loeb’s proposal. He has also proposed that 3I/Atlas is an alien probe, ignoring or dismissing the images and data that make if very clear that it is nothing more than a comet, albeit interstellar in origin. It appears therefore that he might very well represent the quality of scientists that Harvard is hiring these days.

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Acting NASA head Duffy reshapes NASA’s space station plans

9:36 am

Sean Duffy
Sean Duffy, transportation secretary and interim
NASA administrator

Earlier this week NASA’s interim administrator Sean Duffy issued a new directive [pdf] that fundamentally reshaped the agency’s space station program in how it will fund and operate the private commercial space stations now under development.

Under the present plan, NASA had issued development contracts to three proposed commercial stations, with a major contract award expected next year to one of the four companies/consortiums that are bidding. Duffy instead wants NASA to fund all the stations in an open-ended manner.

Instead of moving forward in Phase 2 with a firm fixed price contract for [commercial station] certification and services, NASA will continue to support U.S industry’s design and demonstration of [commercial stations] with multiple funded SAAs [Space Act Agreements] for the next phase. NASA will shift the formal design acceptance and certification planning acceptance from this SAA phase to a follow-on certification phase.

Utilizing SAAs for the next phase better aligns with enabling development of US industry platforms. It provides greater resources for industry to align schedule with NASA’s needs. SAAs also provide more flexibility to deal with possible variations in funding levels without the need of potentially protracted and inefficient contract renegotiations.

SAAs are generally fixed price, but the structure Duffy is establishing appears to allow NASA to supplement these contracts endlessly, making them a kind of hybrid cost-plus deal. It also aims at supporting “a minimum of two, preferably three or more” of the private stations under development.

Duffy’s shift to SAAs will also give the private stations more design and operational freedom, as SAAs shift responsibility and ownership to the company, not NASA. The arrangement will also likely require a larger investment by the companies, though this is not clear in Duffy’s directive.
» Read more

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NASA officially ends failed Lunar Trailblazer mission

9:27 am

NASA on August 4, 2025 officially ended its months-long effort to recover its Lunar Trailblazer mission that failed almost immediately after launch in February.

Lunar Trailblazer shared a ride on the second Intuitive Machines robotic lunar lander mission, IM-2, which lifted off at 7:16 p.m. EST on Feb. 26 aboard a SpaceX Falcon 9 rocket from the agency’s Kennedy Space Center in Florida. The small satellite separated as planned from the rocket about 48 minutes after launch to begin its flight to the Moon. Mission operators at Caltech’s IPAC in Pasadena established communications with the small spacecraft at 8:13 p.m. EST. Contact was lost the next day.

Without two-way communications, the team was unable to fully diagnose the spacecraft or perform the thruster operations needed to keep Lunar Trailblazer on its flight path.

This failure of a NASA-built and operated lunar orbiter contrasts starkly with the success of the privately-built and operated Capstone mission. Contact with that spacecraft, built by Rocket Lab, was also lost soon after launch, but the company doing mission control, Advanced Space, was able to re-establish contract and get the spacecraft into lunar orbit, where it continues to function as planned.

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NASA awards small orbital tug study contracts to six companies

8:35 am

NASA yesterday awarded six companies small study contracts in connection with orbital tug operations, with some to study using their rocket upper stage for this purpose while others to see how they can refine the use of their tugs.

The press release was not entirely clear on how much money was involved in each contract, though in each case the amounts are relatively small.

The firm-fixed-price awards comprise nine studies with a maximum total value of approximately $1.4 million. The awardees are:

Arrow Science and Technology LLC, Webster, Texas [tug study]
Blue Origin LLC, Merritt Island, Florida [both tug and upper stage studies]
Firefly Aerospace Inc., Cedar Park, Texas [tug study]
Impulse Space Inc., Redondo Beach, California [tug study]
Rocket Lab, Long Beach, California [both tug and upper stage studies]
United Launch Services LLC, Centennial, Colorado [upper stage study]

The studies are expected to be finished by September 2025, and will be used by NASA to determine how it will get some of its future spacecraft to their intended orbits.

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Russia desperately lobbies the U.S. to continue and expand its space partnership

10:06 am

Roscosmos: a paper tiger
Roscosmos: a paper tiger

A string of short articles in Russia’s state-run press today, describing the meetings between the head of Roscosmos, Dmitry Bakanov, and interim NASA administrator Sean Duffy, suggest strongly that Russia is desperate to link itself with someone in order to continue its generally bankrupt space program.

Bakanov is making his first visit to the U.S. He and Duffy are also conducting the first face-to-face talks by the heads of their respective agencies in eight years. While the U.S. press has been entirely uninterested in these discussions, mostly because it knows little of substance will come of them other than an agreement to maintain the partnership at ISS through its planned retirement in 2030, the reaction by Russia’s press has been remarkably fawning, repeatedly proposing the U.S. and Russia expand their partnership beyond ISS:

Very clearly, Bakanov was trying to convince Duffy to consider a greater partnership, whereby Roscosmos and NASA do other space projects together. He might have even been offering to join NASA’s Artemis program to explore the Moon.

It appears from the other Russian state-run reports, however, that Duffy’s response was diplomatic but unenthused by such a proposal. All he apparently agreed to was to continue the ISS partnership, until the station’s retirement.
» Read more

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Endeavour launched successfully, carrying four astronauts to ISS

9:03 am

SpaceX’s Endeavour Dragon capsule has been successfully placed in orbit carrying four astronauts to ISS, its Falcon 9 rocket lifting off from Kennedy in Florida.

This is Endeavour’s sixth flight. It will dock at ISS in the early hours tomorrow. The first stage completed third flight, landing back in Florida.

The leaders in the 2025 launch race:

96 SpaceX
41 China
10 Rocket Lab
9 Russia

SpaceX now leads the rest of the world in successful launches, 96 to 71.

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The word that best describes our present NASA lunar program is “delusional.”

12:16 pm

Artemis, a program based on fantasy
Artemis, a program based on fantasy

Increasingly it appears everyone in Congress, the White House, and NASA, as well as our bankrupt mainstream press, has become utterly divorced from reality in talking about NASA’s Artemis lunar program. The claims are always absurd and never deal with the hard facts on the ground. Instead, it is always “Americans are piorneers! We are great at building things! We are going to beat China to the Moon!”

An interview of interim NASA administration (and Transportation secretary) Sean Duffy yesterday on the Sean Hannity Show made all these delusions very clear. First Hannity introduced Duffy by stating with bald-faced ignorance that “NASA has a brand-new program. It is called Artemis that aims to get astronauts back on the Moon in the next couple of years.”

I emphasize “brand-new” because anyone who has done even two seconds of research on the web will know that Artemis has existed now for more than a decade. Hannity illustrates his incompetence right off the bat.

Duffy then proceeds to insist that the next Artemis mission, dubbed Artemis-2, will fly in April 2026 and send four astronauts around the Moon, followed by the Artemis-3 manned landing one year later.

Being an incompetent member of the propaganda press, Hannity of course accepts these claims without question. He fails to question Duffy about the serious issues with the Orion heat shield, which experienced extensive unexpected damage that is still not understood during its return on the first Artemis mission in 2022.

Nor does either Duffy or Hannity mention the fact that for Artemis to land humans on the Moon SpaceX’s Starship not only has to become operational for human passengers, it needs an in-orbit refueling capability that does not yet exist. I have full confidence that SpaceX will eventually succeed in achieving these benchmarks, but I also doubt it will be able to do it by mid-2027, as claimed by Duffy.

Duffy and Hannity however are not alone in living in this dream world. » Read more

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Thales Alenia ships the orbit insertion module for the Mars sample return mission

8:59 am

Though the entire project remains in limbo at NASA and might be cancelled, the European aerospace company Thales Alenia this week completed construction of the orbit insertion module for the Mars sample return mission that will place the orbiter — also built by European companies — in Mars orbit and will eventually bring the samples back to Earth.

On 28 July, Thales Alenia Space announced that the module had passed its test campaign with “excellent results.” According to the update, the company had packed and shipped the Orbit Insertion Module from its Turin facilities to Airbus in Stevenage a few days earlier. The delivery marks a key milestone in the development of the Mars Return Orbiter.

The broader Earth Return Orbiter project passed a key milestone in July 2024 with the completion of the Platform Critical Design Review. This review confirmed the performance, quality, and reliability of the mission’s systems. With its successful conclusion, Airbus advanced to full spacecraft development, including the integration and testing of its various components, among them the Orbit Insertion Module.

Under the project’s present very complex design, NASA is supposed to provide the ascent rocket and capsule to bring the samples to Europe’s return orbiter. At the moment it is unclear who will build this, or even if it will ever get built. Thus, Europe might be building a very expensive Mars orbiter with no clear mission.

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Firefly wins new NASA lunar lander contract, worth $176.7 million

8:52 am

NASA announced yesterday that it has awarded Firefly a $176.7 million contract to use the company’s Blue Ghost lunar lander to deliver two rovers and three other science instruments to the Moon’s south pole region.

Under the new CLPS task order, Firefly is tasked with delivering end-to-end payload services to the lunar surface, with a period of performance from Tuesday to March 29, 2030. The company’s lunar lander is targeted to land at the Moon’s South Pole region in 2029.

This is Firefly’s fifth task order award and fourth lunar mission through CLPS. Firefly’s first delivery successfully landed on the Moon’s near side in March 2025 with 10 NASA payloads. The company’s second mission, targeting a launch in 2026, includes a lunar orbit drop-off of a satellite combined with a delivery to the lunar surface on the far side. Firefly’s third lunar mission will target landing in the Gruithuisen Domes on the near side of the Moon in 2028, delivering six experiments to study that enigmatic lunar volcanic terrain.

One of the rovers is being built in partnership with Canada.

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Starlab partners with the interior design company Journey

3:12 pm

Starlab design in 2025
The Starlab design in 2025. Click
for original image.

The consortium designing the commercial Starlab space station has now signed a partnership deal with the interior design company Journey for the latter to design the station’s habitable interior.

Journey brings a deep portfolio of globally recognized projects, including the Sphere in Las Vegas, the Empire State Building observatory in New York City and the Sun Princess Dome for Princess Cruises. The agency will be working closely with Hilton, one of the original strategic partners in the Starlab program, designing the Starlab hospitality and crew experience. Journey’s role adds a vital layer of design and experiential innovation, shaping a space that reflects both function and humanity.

Much of the press release is similar blather. It is good that Starlab is thinking about making the living space in its station “both a cutting-edge research platform and a welcoming, livable habitat,” but this deal doesn’t include any actual design work. Apparently nothing concrete will be done until Starlab wins the big NASA construction project — assuming it does so. Thus, I still rank Starlab low in my rankings of the four commercials stations being built or proposed, but this deal has convinced me to raise its ranking above Orbital Reef. Both have built little, but Starlab is at least making a lot of partnership deals with others, strengthening the quality of its team.

  • Haven-1, being built by Vast, with no NASA funds. The company is moving fast, with Haven-1 to launch and be occupied in 2026 for an estimated 30 days total. It hopes this actual hardware and manned mission will put it in the lead to win NASA’s phase 2 contract, from which it will build its much larger mult-module Haven-2 station..
  • Axiom, being built by Axiom, has launched four tourist flights to ISS, with the fourth carrying government passengers from India, Hungary, and Poland. Though there have been rumors it has cash flow issues, development of its first module has been proceeding more or less as planned.
  • Starlab, being built by a consortium led by Voyager Space, Airbus, and Northrop Grumman, with an extensive partnership agreements with the European Space Agency and others. It recently had its station design approved by NASA, but it has built nothing. The company however has now raised $383 million in a public stock offering, which in addition to the $217.5 million provided by NASA gives it the capital to begin some construction.
  • Orbital Reef, being built by a consortium led by Blue Origin and Sierra Space. Overall, Blue Origin has built almost nothing, while Sierra Space has successfully tested its inflatable modules, including a full scale version, and appears ready to start building its module for launch.

Hat tip to BtB’s stringer Jay.

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One of NASA’s two Tracers satellites just launched has an issue

10:17 am

During the commissioning phase shortly after their launch earlier this week, one of NASA’s two Tracers satellites designed to study the solar wind and its interaction with the Earth’s magnetic field has had an as yet unnamed issue.

During the commissioning process, the team made routine adjustments to the power subsystem on both vehicles. While the adjustments achieved the desired results on one satellite, the other satellite requires further investigation by the team. Commissioning operations are temporarily paused while the team analyzes the situation and determines the appropriate response.

Though the press release provides no other information, it appears the satellite is having a problem producing the power expected.

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NASA’s work force is shrinking by about 4,000

10:11 am

The number of NASA employees that have accepted the Trump offer to leave has now grown to more than 4,000 people, reducing the entire workforce from 18,000 to 14,000.

Nearly 4,000 employees, or more than 20% of NASA’s workforce, have applied to leave the agency, NASA confirmed to CBS News Friday. About 3,870 employees have applied to depart NASA over two rounds through the Trump administration’s deferred resignation program, NASA disclosed. The deadline for applications to the program is midnight Friday.

With those deferred resignations, NASA’s civil servant workforce would shrink from about 18,000 to 14,000 personnel. This figure also includes about 500 employees who were lost through normal attrition, the agency said.

It is certain that while Trump is office these workers will not be replaced. While most of the press and pro-government activists will claim this is terrible news, it is actually the best thing that can happen. Since NASA is now trying to use the capitalism model across the board, it doesn’t need that many employees. It is hiring the private sector to do most of its work. It doesn’t take that many people to review and issue a contract.

So, even if Congress rejects Trump’s proposed 24% cut to NASA’s 2026 budget and funds it entirely at the same levels as in 2025, the money will be more effectively used.

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Like the Senate the House appropriation committee rejects Trump’s NASA cuts, but differently

9:20 am

The NASA 2026 budget approved this week by the House appropriation committee has rejected the 24% cut proposed by the Trump administration, in a similar manner as the parallel Senate committee.

However, the two congressional committees are not in agreement on any of their spending proposals.

The totals recommended by the two committees are similar — $24.8 billion in the House, $24.9 billion in the Senate — but the specifics are different in many cases.

For example, the House wants to spend $300 million for NASA’s very messed-up Mars Sample Return project, while the Senate eliminated it entirely. The House also increases NASA’s manned exploration budget over Trump’s proposal, while the Senate cuts it. In science spending the House is less generous than the Senate, though both houses reject Trump’s cuts. In education the House agrees with Trump, zeroing out that funding, while the Senate wants to increase the ’25 budget slightly.

Before the 2026 budget is approved the two houses will have to negotiate an agreement to make their numbers match. What has usually happened in past negotiations is that the houses agree to approve the highest spending numbers in any budget item so that nothing gets cut and the budget continues to go up uncontrollably. We should not be surprised if our corrupt Congress does exactly that.

Even so, we should expect Trump to force significant changes at NASA, including budget reductions. Recent Supreme Court rulings have confirmed the president’s right to reorganize and even eliminate bureaucracies, as long as Congress doesn’t specify a particular spending item.

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Government employees: The most spoiled and privileged individuals on Earth

9:50 am

NASA: home to the privileged and perfect
NASA: home to the privileged and perfect

Timed to coincide with the anniversary of the Apollo 11 lunar landing, NASA employees and many of their supporters gathered yesterday for protests, demanding that their jobs be saved and that Congress not only cancel Trump’s proposed budget cuts to NASA, that Congress even consider increasing the budget because the work they do is so so SO vital.

The protests appeared to be organized by several groups, all claiming to be “grassroots” but all seeming to be well funded and comparable to other recent government protest groups at other agencies, issuing sanctimonious “declarations” that claim the cuts “to waste public resources, compromise human safety, weaken national security.”

Yet, the Trump cuts would only reduce NASA’s staffing of 17,000 by about 2,600 employees. How horrible!

This quote from the first link above is typical of the attitude of these government workers:
» Read more

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Axiom’s ticket price for India’s astronaut on Ax-4 mission: $59 million

10:38 am

According to reports today in the India press, the price Axiom charged India’s space agency ISRO for training and then flying its astronaut on the just completed Ax-4 two-week mission to ISS was $59 million.

The expenditure by ISRO includes cost of [Shubhanshu] Shukla’s training for the mission as well as that of a seat on SpaceX’s Dragon spacecraft for the 20-day trip that launched Shukla, and three others — Peggy Whitson from the US, Slawosz Uznanski-Wisniewski of Poland and Tibor Kapu of Hungary — to space.

Earlier reports had suggested Axiom was charging $70 million per ticket. If the $59 million is accurate and applies to the charges Poland and Hungary paid, then Axiom’s revenue for the flight was $177 million. From that it would have to pay SpaceX (for the launch and the use of its Grace capsule) and NASA (for the use of ISS). Based on past history, SpaceX likely charged around $70 million for the launch. The cost for using Grace is unknown. NASA’s fees for a two-week visit to ISS were probably around $10 million plus.

My guess, based on this very limited information, is that Axiom made some profit from the flight, ranging from $20 to $50 million.

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House follows Senate in canceling most of Trump’s proposed NASA budget cuts

9:45 am

Like pigs at the trough
Like pigs at the trough

The House appropriations committee’s draft budget for NASA has followed the Senate appropriations committee in canceling all of Trump’s proposed NASA budget cuts, though it has shifted that funding significantly from science to manned space operations.

The House Appropriations Committee released the draft text of their version of the FY2026 Commerce-Justice-Science bill that funds NASA today. Like their Senate counterpart, the House committee would essentially keep NASA at its current funding level instead of imposing the severe 24.3 percent budget cut proposed by the Trump Administration. The CJS bill also includes almost $2 million for a White House National Space Council even though the Trump Administration has yet to establish one.

Unlike the Senate, which mostly kept the budget the same across all NASA departments, this House draft budget would reduce science and aeronautics spending from about $8.2 billion to $6.8 billion. Trump had requested only $4.5 billion for these departments.

In turn, the House would increase Trump’s request for NASA’s manned operations from $10.8 billion to $11.9 billion. Note that Trump’s proposed budget had already called for an increase here, so the House is clearly shifting funding to manned space in an enthusiastic manner.

At the same time, the House continues funding for the SLS and Orion programs Trump wishes to cancel. Both of these projects are over budget and behind schedule. Neither is very useful in the long run for exploring the solar system. If the House truly wanted to save money, it could easily fund all the cuts in science by cutting the billions spent yearly on these pork projects, and still lower NASA’s budget in total.

Based on the draft budget’s language [pdf], it is unclear whether the House has also funded the Lunar Gateway space station, as the Senate has, another useless pork project that Trump wishes to cancel.

I should note that the appropriations committee’s overall draft budget [pdf] does reduce the federal budget by about 2.8 percent. This is a marked change from past budgets, which often claimed (a lie) to cut spending but really only reduced the rate of budget growth. It appears the House is finally making some effort to shrink the size of the budget, though that effort is quite wimpy.

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Senate committee moves to cancel most of Trump’s proposed NASA budget cuts

9:03 am

Like pigs at the trough
Like pigs at the trough

We’ll just print it! Though disagreements prevented the Senate’s appropriations committee from approving the 2026 bills covering the commerce, justice, and science agencies of the federal government (including NASA) , the committee yesterday appeared poised to cancel most of Trump’s proposed NASA budget cuts and even add more spending across the board.

Sen. Chris Van Hollen (D-Maryland), the top Democrat on the CJS subcommittee, said this morning the bill would fund NASA at $24.9 billion, slightly above its current $24.8 billion level, with the Science Mission Directorate (SMD) remaining level at $7.3 billion.

By contrast, the Trump Administration wants to cut NASA overall by $6 billion, from $24.8 billion to $18.8 billion. SMD’s portion would drop 47 percent, from $7.3 billion to $3.9 billion.

The disagreements centered not on NASA, but on the Trump administration’s effort to cancel a very expensive new FBI headquarters building in the Maryland suburbs and instead shift the agency to an already existing building in DC. Van Hollen opposed this, and the ensuing political maneuvering forced the committee to cancel the vote.

This bill would once again continue full funding for SLS, Orion, and Lunar Gateway. It also includes funding for NASA’s very messed-up Mars Sample Return mission (which comprises the large bulk of the money added back in for science). From this it appears that the Republicans in the Senate are quite willing to join the Democrats in spending money wildly, as they have for decades. They have no interest in gaining some control over the out-of-control federal budget, in any way, as Trump is attempting to do.

What remains unknown is this: Who has the support of the American people? The election suggests the public agrees with Trump. History suggests that this support for cutting the budget is actually very shallow, and that while the public says it wants that budget brought under control, it refuses to accept any specific cuts to any program. “Cut the budget, but don’t you dare cut the programs I like!”

It is my sense that the public’s view is changing, and it is now quite ready to allow big cuts across the board. The problem is that the vested interests in Congress and in the DC work force are quite powerful, and appear to still control the actions of our corrupt elected officials.

Thus, the more of that work force that Trump can eliminate as quickly as possible, on his own, the more chance he will have to eventually bring this budget under some control.

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Why did Trump suddenly pick Transportation Secretary Sean Duffy to become temporary head of NASA?

9:32 am

The reason for Trump’s sudden decision yesterday to name Transportation Secretary Sean Duffy as interim NASA administrator, replacing long-time NASA manager Janet Piro — who had held the job since Trump took office — remains unclear.

This article suggests the president wanted someone with more political clout who was also part of his inner circle.

Two articles (here and here) imply the decision was related to the recent clashes politically between Trump and Musk, adding that Duffy and Musk have been reported to be in conflict over air traffic controller issues. Picking Duffy thus directly reduces Musk’s influence at NASA.

The truth is that we really don’t know exactly what motives brought Trump to make this appointment. It could be that Trump wants someone in charge who will have the political clout to push through his proposed NASA cuts. It also could be Trump wants someone with that clout to review those cuts and change them.

The bottom line is that NASA remains a political football, a situation that in the end had done decades of harm to the American space industry. The sooner it can be made irrelevant and replaced by a commercial, competitive, and (most important) profitable space industry, the better.

We really don’t need a “space agency.” We didn’t have such a thing when we settled the American west.

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Senate reconciliation budget bill includes Cruz’s big spending additions to NASA

9:36 am

Senate NASA budget increases

According to a tweet yesterday by Representative Marjorie Taylor Greene (R-Georgia), the reconciliation budget bill that was passed by the Senate included the budget additions that Senator Ted Cruz (R-Texas) had proposed to save SLS, Orion, and Lunar Gateway.

The graphic to the right lists these budget numbers. It is not clear whether the launch taxes on payloads that Cruz proposed were also included, though likely not based on the rules under which the reconciliation bill was passed.

This additional money for these projects contradicts directly the NASA 2026 budget proposal put forth by Trump that aimed to cancel Lunar Gateway and end SLS and Orion after only two more flights. Their existence in this passed Senate bill suggests that Congress is cool with the idea of spending this money and continuing these projects, even though they do nothing but waste taxpayer money and get us no where in space.

It also appears from the language in the graphic that the Senate is eager to also spend more money on NASA’s Mars sample return project, even though NASA itself still has no idea how to accomplish the task.

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NASA still hoping to save its Lunar Trailblazer mission

8:59 am

Though the odds of success are very dim, NASA has decided to give engineers another few weeks to try to activate its Lunar Trailblazer orbiter, that stopped communicating with Earth the day after it was launched in late February.

NASA has extended recovery efforts of its Lunar Trailblazer spacecraft from mid-June to early July. Updated modeling of the spacecraft’s trajectory by the mission team indicates lighting conditions will continue to be favorable and may provide enough sunlight for the spacecraft’s solar panels to recharge its batteries to an operational state and turn on its radio.

…Should enough sunlight reach Lunar Trailblazer’s solar panels, the batteries may charge to a level that allows the spacecraft’s radio system to boot up. But as Lunar Trailblazer travels farther away, it will soon be too distant to recover because its telecommunications signals to Earth will be too weak for the mission to receive telemetry and command.

The mission team has determined that if they can regain command of the spacecraft, the propulsion system isn’t frozen, and the instruments remain operable, the spacecraft may be able to achieve an elliptical lunar orbit and complete its lunar science objectives.

As I said, the chance of success are not good.

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NASA sets another new date for Axiom’s Ax-4 commercial manned mission to ISS

9:21 am

NASA today announced a new launch date of June 25, 2025 for Axiom’s Ax-4 commercial manned mission to ISS carrying a three passengers from India, Poland, and Hungary respectively and commanded by former NASA astronaut Peggy Whitson (now working for Axiom).

As with previous announcements, the information provided was sparse:

NASA, Axiom Space, and SpaceX are targeting 2:31 a.m. EDT, Wednesday, June 25, for launch of the fourth private astronaut mission to the International Space Station, Axiom Mission 4.

The mission will lift off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The crew will travel to the orbiting laboratory on a new SpaceX Dragon spacecraft after launching on the company’s Falcon 9 rocket. The targeted docking time is approximately 7 a.m. Thursday, June 26. NASA will provide more details and its coverage information shortly.

The launch had previously been delayed several times because NASA and Russia wanted to first assess the repair work on the leaks in the Russian Zvezda module before allowing another docking at the station. No information however has been released so far detailing that assessment. Though there have been indications that the loss of air in ISS was stopped by the repair, neither NASA nor Roscosmos have provided any specific data.

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Ispace: Resilience’s failure was due to a hardware issue in laser range finder

8:34 pm

In a press conference today, officials of the Japanese startup Ispace explained that the failure of its second lunar lander, Resilience, to land softly on the Moon on June 5, 2025 was due to a hardware issue in its laser range finder that prevented it from providing correct altitude data.

At the same time, they have not yet been able to pin down precisely what caused the failure. It could have been because of unexpected degradation during flight, or possibly a technical fault with the range finder in gathering data at the speeds and altitudes experienced.

The company is forming a task force in partnership with Japan’s space agency JAXA as well as NASA to try to figure out the issue. It is also going to add lidar instrumentation to future missions to provide a backup to the laser range finder. These actions will add about $11 million in additional costs, an amount Ispace says it can absorb.

Ispace is building two more lunar landers, one for NASA in partnership with the American company Draper, and the second for JAXA. It appears both missions are still moving forward.

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Parker completes its 24th close fly-by of the Sun

10:13 am

The Parker Solar Probe has successfully completed its 24th close fly-by of the Sun, the last of its initial primary mission, matching the distance and speed record set during two previous fly-bys.

Parker Solar Probe checked in with mission operators at the Johns Hopkins Applied Physics Laboratory (APL) in Maryland — where it was also designed and built — on Sunday, June 22, reporting that all systems are healthy and operating normally. The spacecraft was out of contact with Earth and operating autonomously during the close approach.

During this flyby, the spacecraft also equaled its record-setting speed of 430,000 miles per hour (687,000 km per hour) — a mark that, like the distance, was set and subsequently matched during close approaches on Dec. 24, 2024, and March 22, 2025.

The data obtained during this fly-by will be beamed back to Earth in the coming months, as Parker moves to the outer part of its orbit, farther from the Sun.

Though this completes the planned orbits of the mission’s primary mission, the proposed Trump budget continues to fund the spacecraft’s operation for the next five years, allowing it to monitor changes in the Sun as it ramps down from solar maximum to solar minimum.

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Isaacman hints of future space plans

9:11 am

In receiving an award from a space advocacy group on June 21, 2025, billionaire Jared Isaacman hinted that his future space-related plans could include working with science organizations to finance scientific probes.

[Had he become NASA administrator he had wanted] NASA to partner with academic organizations on missions where such organizations would have had a bigger role in funding. “My priorities would have been leadership in space and the orbital economy,” he said, “and trying to introduce a concept where NASA could help enable others to conduct interesting scientific missions, getting academic organizations to contribute.”

That was something he said he might be interested in pursuing outside the agency. “I wouldn’t mind maybe trying to put that to a test and see if you could fund an interesting robotic mission, just to show that it can be done, and try and get some of the top tier academic institutions who want to perform. So that’s on my mind.”

He also indicated that he generally has no problem with the Trump administration’s proposed NASA cuts, noting that such academic organizations need to figure out how to work with less money.

Despite this statement, it appears he is still unsure of what he will do next in space. He has not restarted his Polaris Dawn manned program — suspended when he was nominated to become NASA administrator — and has said that right now he is more focused taking advantage of this unexpected break from work to spend more time with his family.

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NASA delays Axiom manned mission again

9:11 am

Without providing any specific details, NASA today announced that it has once again scrubbed the June 22, 2025 launch of Axiom’s Ax-4 manned mission to ISS as it assesses the Russian repairs to the air leaks in the Russian Zvezda module.

The space agency needs additional time to continue evaluating International Space Station operations after recent repair work in the aft (back) most segment of the orbital laboratory’s Zvezda service module. Because of the space station’s interconnected and interdependent systems, NASA wants to ensure the station is ready for additional crew members, and the agency is taking the time necessary to review data.

No new launch date has been set. Because the agency provides so little specific information, we don’t know if the air leak repairs are working, are failing, or have indicated even more serious problems that make any station docking a greater risk. Almost certainly, this latter fear is unfounded and the repairs have succeeded in stopping or slowing the loss of air, but the paucity of information from NASA allows for wild speculations. It would be better if the agency told us what it has so far learned, and exactly why that knowledge requires it to extend the data-gathering time period.

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NASA/Axiom announce another four-day launch delay for Axiom’s fourth manned mission

8:55 am

NASA and Axiom today announced that they have rescheduled the launch of Axiom’s fourth manned mission to ISS, dubbed Ax-4, to June 22, 2025 in order to give Russian and American engineers more time to assess the leak repairs in the station’s Russian Zvezda module.

The press announcement provided little information, simply stating that:

The change in a targeted launch date provides NASA time to continue evaluating space station operations after recent repair work in the aft (back) most segment of the International Space Station’s Zvezda service module.

It would be nice if the agency would release some actual data. Earlier reports had suggested that the repairs had completely sealed the leaks and that the station was no longer losing air. The vagueness of today’s report suggests that the repairs might not have been as successful as hoped. It could also be engineers simply want more data for a longer period to prove the repairs have worked.

The lack of detailed information causes unnecessary speculation.

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Axiom manned flight to ISS rescheduled; NASA attempts to clarify ISS leak situation

9:26 am

In a NASA update today, it announced a new launch date of June 19, 2025 for Axiom’s fourth manned flight to ISS while also attempting to clarify ISS leak situation that caused this last and more extended delay.

On June 12, NASA and Axiom Space delayed the mission as the agency continued to work with Roscosmos to understand the most recent repair efforts to seal small leaks. The leaks, located in the aft (back) most segment of the International Space Station’s Zvezda service module, have been monitored by flight controllers for the past few years.

Following the most-recent repair, pressure in the transfer tunnel has been stable. Previously, pressure in this area would have dropped. This could indicate the small leaks have been sealed. Teams are also considering the stable pressure could be the result of a small amount of air flowing into the transfer tunnel across the hatch seal from the main part of space station. By changing pressure in the transfer tunnel and monitoring over time, teams are evaluating the condition of the transfer tunnel and the hatch seal between the space station and the back of Zvezda.

It appears, though NASA doesn’t say so directly, that the Russians did not wish to change the situation at ISS with another docking — even if it was a docking on the American half of the station — while it was evaluating these leak repairs. It now appears they have gotten enough data to allow NASA to set a new launch date later this week.

If the repairs have managed to stop the leaks this is excellent news. At the same time, it doesn’t reduce the risks of a catastrophic failure of Zvezda, since the existence of these numerous stress fractures in its hull suggest a chronic long term failure that can only worsen with time.

The sudden delay of Axiom’s AX-4 last week also indicates poor coordination between NASA and Roscosmos. It was as if NASA had no idea the repair work was occurring, either because it wasn’t paying attention to what the Russians were doing or because the Russians had kept this work secret until it was completed. In either case, this is not how such a partnership should operate.

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Axiom manned mission delayed further because of new Zvezda leaks on ISS

8:58 am

Figure 3 from September Inspector General report
Figure 3 from September Inspector General report, showing Zvezda’s location on ISS.

According to a press update today by NASA, the launch of the commercial Ax-4 manned mission to ISS has been further delayed due to work by the Russians attempting to seal new leaks in the station’s Zvezda module.

NASA and Axiom Space are postponing the launch of Axiom Mission 4 to the International Space Station. As part of an ongoing investigation, NASA is working with Roscosmos to understand a new pressure signature, after the recent post-repair effort in the aft most segment of the International Space Station’s Zvezda service module.

Cosmonauts aboard the space station recently performed inspections of the pressurized module’s interior surfaces, sealed some additional areas of interest, and measured the current leak rate. Following this effort, the segment now is holding pressure.

In other words, the Russians had recently detected an increase in leakage in the module, identified several more cracks inside Zvezda, and have been working to seal them.

The graphic above comes from a 2024 NASA inspector general report, which at that time noted a significant increase in the leak rate in 2024 (see the data in the lower right). Since then it has been NASA policy to close the hatch that connects the American and Russian sections of the station whenever anything docks with Zvezda, due to risk that the docking could cause the module to fail entirely.

Zvezda is one of the oldest modules on ISS, built in the late 1980s and launched in 2000. It is believed the leaks are due to stress fractures in its hull due to the many dockings and undockings that have occurred at its aft docking port.

If the NASA press release can be believed, the situation is under control and the repairs have been successful. If so, expect the Axiom mission to be rescheduled shortly.

If not, we could be witnessing the beginning of the end of ISS, five years earlier than planned by bureaucrats in Washington and Moscow.

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Axiom charges $70 million per ticket to fly to ISS

9:08 am

Axiom's new module assembly sequence
Axiom’s assembly sequence for its planned station, initially attached to ISS but subsequently detached

According to this article today about Axiom’s tourist flights to ISS, the company now charges $70 million per ticket, which means that for the AX-4 flight scheduled for launch tomorrow, the revenues from India, Poland, and Hungary total about $210 million.

That money of course doesn’t all end up in Axiom’s pockets. It has to pay SpaceX for the launch and use of the Dragon capsule. It also has to pay NASA some recently imposed high fees to use its astronaut training facilities as well as lease time on ISS.

All told, I suspect Axiom’s profits for these flights is relatively small. The company however has other reasons to fly these missions. It is attempting to win NASA’s big space station construction contract, and these flights to ISS demonstrate the company’s ability to manage such operations while working with NASA. Of the other three space station projects competing for that contract, only Vast is planning to do the same.

This effort by these two companies is part of the reason I rank them first and second for winning that contract.

  • Haven-1, being built by Vast, with no NASA funds. The company is moving fast, with Haven-1 to launch and be occupied in 2026 for an estimated 30 days total. It hopes this actual hardware and manned mission will put it in the lead to win NASA’s phase 2 contract, from which it will build its much larger mult-module Haven-2 station..
  • Axiom, being built by Axiom, has launched three tourist flights to ISS, with a fourth scheduled for tomorrow, carrying passengers from India, Hungary, and Poland. Though there have been rumors it has cash flow issues, development of its first module has been proceeding more or less as planned.
  • Orbital Reef, being built by a consortium led by Blue Origin and Sierra Space. Overall, Blue Origin has built almost nothing, while Sierra Space has successfully tested its inflatable modules, including a full scale version, and appears ready to start building its module for launch.
  • Starlab, being built by a consortium led by Voyager Space, Airbus, and Northrop Grumman, with an extensive partnership agreement with the European Space Agency. It recently had its station design approved by NASA, but it has built nothing. This might change once it obtains several hundred million dollars from its initial public offering of stock.
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