Tag: NASA

The man who has been running NASA’s manned Artemis program resigns

9:31 am

Late yesterday NASA officially announced that Jim Free, who has been running NASA’s manned Artemis program for the past year, has decided to resign.

Only a month or so ago the people at NASA had assumed that Free would take over as the agency’s acting administrator during the transition from Bill Nelson, appointed by Biden, and Jared Isaacman, appointed by Trump. Instead, Trump’s transition team gave this job to Janet Petro, who had been head of the Kennedy Space Center in Florida. Free has been seen as a headquarters guy who has for years favored the old big space companies like Boeing and who also has favored SLS and Orion and the old way of doing things, whereby NASA designs, builds, and controls everything instead of simply buying what it needs from the private sector.

There have also been reports that “three key officials” at the Marshall Space Flight Center in Alabama have also submitted their retirement papers. This would suggest that the earlier proposals by Trump’s NASA transition team to shrink or eliminate many of NASA’s numerous centers scattered across the country are being seriously discussed, and possibly being implemented.

Many news sources have concluded that the decision by the Trump administration to delay its major layoffs at NASA was because the Trump administration was reconsidering these major changes. I disagree. I think it is holding off because the new administrator has not yet been confirmed by the Senate, and it decided he should have a say in these reductions and changes. The retirement and resignation of these old school NASA management types further tells us that major changes are coming.

Overall, my guess is that a major reorganization of NASA — including the elimination of many of its centers — could reduce its overhead by $5 to $10 billion per year. Part of those savings could be used to reduce the deficit, but some could also be used to increase the amount of money available for all of NASA’s goals. I made this point fourteen years ago, and nothing has changed since then except that NASA has wasted billions over that time accomplishing nothing with SLS and Orion.

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Boeing announces a new round of layoffs related to its SLS NASA contract

9:02 am

Boeing yesterday announced that it will layoff another 71 employees in connection with its SLS NASA contract, based on rumored changes in NASA’s entire Artemis lunar program, including the increasingly real possibility that SLS will be canceled entirely by the new Trump administration.

The defense contractor was already in the midst of reducing its workforce, including in Alabama. But today, the company told AL.com that changes to its contract with NASA to develop the Space Launch System program sparked the need for some of the 71 layoffs. “As Boeing and NASA continue to finalize contract revisions for Boeing’s work on the Space Launch System program, we have successfully mitigated a majority of the previously announced workforce reductions,” a Boeing spokesperson said in an email to AL.com.

The news article at the link actually suggests that the total number of layoffs is now half that predicted by the company a few weeks ago, so it remains very unclear if these layoffs are because NASA is considering cancelling SLS, or because Boeing is simply shifting SLS management from development (which requires more people) to routine operations.

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Musk: Biden delayed the return of Starliner’s astronauts “for political reasons”

10:06 am

During a television interview with President Trump, Elon Musk suggested that the reason the two Starliner astronauts have been forced to remain on ISS for months was because of a political decision by the Biden administration last year.

The billionaire SpaceX CEO said his company was “accelerating the return of the astronauts” as per Trump’s instructions. Musk then appeared to take a shot at the Biden administration, saying the move was “postponed kind of to a ridiculous degree,” before the president chimed in saying “they got left in space.”

When Hannity pointed out the astronauts have been on the ISS for almost 300 days instead of the planned 8 days, Trump simply said “Biden,” before Musk claimed they were “left up there for political reasons, which is not good.”

While the decision to return Starliner unmanned certainly had a political component (a desire to avoid a disaster in the final year of Biden’s term), Musk’s claim is greatly exaggerated. Worse, Musk is papering over his own company’s contribution to the delays. Had SpaceX and NASA chosen in December to use an already existing Dragon capsule instead of a brand new capsule to launch the next crew to ISS, the astronauts would be home already. Instead, they decided to get that new capsule ready, requiring an almost two month delay in their return.

When it became obvious last month that even this extra time was insufficient to get the new capsule ready, only then did SpaceX and NASA choose to switch capsules. That switch allowed them to move up the return date by about a week.

In reporting Musk’s words here, our ignorant press has generally left these details out, allowing both Musk and Trump to make it appear as they are saviors for these poor astronauts. This is simply not true. SpaceX is certainly making it possible to bring them home (something Boeing was unable to do), but it also contributed to the delay in doing so.

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Ispace’s Resilience lunar lander completes lunar flyby in preparation for entering lunar orbit

10:00 am

The Resilience lunar lander, built by the Japanese startup Ispace and launched in January on the same Falcon 9 rocket as Firefly’s Blue Ghost lunar lander, has now completed its closest flyby of the Moon as it prepares to enter lunar orbit sometimes in early May.

The spacecraft is actually still in Earth orbit, but with a apogee that is almost 700,000 miles out, or almost three times the distance of the Moon’s orbit. Once Ispace’s engineers have gotten a precise track of this orbit they will then determine the exact parameters of the engine burn in May that will place Resilience in lunar orbit.

This is Ispace’s second attempt to place a lander on the Moon. The first, Hakuto-R1, came close, but crashed in Atlas Crater (see the map in my previous post) when, at an altitude of several kilometers, its software thought it was only a few feet above the surface and shut the engines off.

Most of the instruments on Resilience are either symbolic or engineering experiments to observe the lander’s operations. It is however carrying a small rover, dubbed Tenacious, which will attempt to travel on the surface.

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Blue Ghost enters lunar orbit, targets March 2, 2025 for landing

9:50 am

Map of lunar landing sites
Landing sites for both Firefly’s Blue Ghost and
Ispace’s Resilience

Blue Ghost on February 13, 2025 successfully completed a long four-minute engine burn to complete its transfer from Earth to lunar orbit, with a target date for the actual landing on March 2, 2025.

Now that the lander is in lunar trajectory, over the next 16 days, additional maneuvers will take the lander from an elliptical orbit to a circular orbit around the Moon. Blue Ghost Mission 1 is targeted to land Sunday, March 2, at 3:45 a.m. EST.

NASA has also announced the live stream coverage during landing:

Live coverage of the landing, jointly hosted by NASA and Firefly, will air on NASA+ starting at 2:30 a.m. EST, approximately 75 minutes before touchdown on the Moon’s surface. Learn how to watch NASA content through a variety of platforms, including social media. The broadcast will also stream on Firefly’s YouTube channel. Coverage will include live streaming and blog updates as the descent milestones occur.

I will embed the Firefly live stream when it becomes available.

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Another Democrat demonstrates her stupidity and ignorance, demanding NASA’s acting administrator revoke Musk’s access to headquarters

9:57 am

Congresswoman Grace Meng (D-New York)
Congresswoman Grace Meng (D-New York), describing
her terror when ordinary Americans walked through the
Capitol on January 6th, almost all of whom simply took
pictures. Click for video.

Proving she knows nothing about the Constitution and the powers it gives to the President, congresswoman Grace Meng (D-New York) earlier this week sent a letter to NASA’s acting administrator Janet Petro demanding that Petro revoke any access to the agency’s headquarters by Elon Musk as part of his work auditing government operations as part of Department of Government Efficiency (DOGE).

Meng’s letter [pdf] is quite entertaining, especially because it repeats the new Democratic Party talking point that somehow because DOGE employees, including Musk, were “unelected” their access is inappropriate. How stupid. Except for the president, everyone who works in the executive branch of government is “unelected.”

That Meng also thinks NASA’s acting administrator has the power to block access to someone hired specifically by the president to do this work shows us how ignorant she is of the Constitution and basic law. Petro can’t cancel Trump’s orders, even if she wants to. Trump is her boss, and if he tasks Musk and DOGE to audit NASA’s books, she must comply.

There is only one part of Meng’s demand that makes some sense, where she demands Petro “set clear and public ground rules” to keep Musk from getting access to proprietary information of other space companies. Musk certainly has a conflict-of-interest issue at NASA, and such rules make sense. I am also quite sure that Musk is well aware of this issue, and will purposely leave the DOGE audit to others.

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NASA announces March 12, 2025 as new launch date for next crew to ISS

9:47 am

NASA yesterday announced that it is now targeting March 12, 2025 as new launch date for sending the next crew to ISS, thus moving that date up about one week.

The earlier launch opportunity is available following a decision by mission management to adjust the agency’s original plan to fly a new Dragon spacecraft for the Crew-10 mission that requires additional processing time. The flight now will use a previously flown Dragon, called Endurance, and joint teams are working to complete assessments of the spacecraft’s previously flown hardware to ensure it meets the agency’s Commercial Crew Program safety and certification requirements. Teams will work to complete Dragon’s refurbishment and ready the spacecraft for flight, which includes trunk stack, propellant load, and transportation to SpaceX’s hangar at 39A at NASA’s Kennedy Space Center in Florida to be mated with the mission’s Falcon 9 rocket. This will be the fourth mission to the station for this Dragon, which previously supported the agency’s Crew-3, Crew-5, and Crew-7 flights.

Both NASA and SpaceX are touting this as a great decision because it will allow the present ISS crew (which includes the two astronauts initially launched on Starliner last year) to get home quicker.

The truth is that this decision really hides the fact that both the agency and company made a wrong decision to use a new capsule for this mission. SpaceX needed more time than expected to prepare it, and those delays pushed back both the launch of a new crew and the return of the old. So, while everyone is spinning this as SpaceX and NASA brilliantly improvising to get those Starliner astronauts home sooner, the real story is that their return had been significantly delayed by almost two months by SpaceX’s inability to get the capsule ready as promised.

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The payloads on Intuitive Machines Athena lunar lander, including a hopper and a rover

9:32 am

The Moon's south pole, with candidate landing sites
Click for NASA’s original image.

Link here. Athena is scheduled for launch on February 26, 2025 on a SpaceX Falcon 9 rocket. The article is mostly focused on describing the Gracie hopper, which will attempt to hop into the permanent shadows inside a nearby crater.

Though no announcement has ever been made, it appears the landing site for this lander has been changed. Previously it had been targeting a ridge adjacent to Shackleton Crater, at the south pole and shown on the map to the right. That location however required a launch in January. The delay to February seems to have shifted the landing site.

If all goes to plan, Athena will land on a plateau just 100 miles (160 kilometers) from the moon’s south pole. This region is thought to be rich in water ice, and IM-2 will prospect for the precious resource with the help of some ride-along robots, including a pioneering hopper nicknamed Gracie.

Though I cannot find any specific information on where this location is, I strongly suspect it is the site that Intuitive Machines’ lander, Nova-C (also dubbed Odysseus), attempted to reach last year.

The yellow boxes on the map indicate NASA’s candidate landing zones for its Artemis-3 manned mission.

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Boeing notifies SLS employees of impending layoffs

11:04 am

The real cost of SLS and Orion
The expected real per launch cost of SLS and Orion

Boeing yesterday sent a notice out to its employees working on NASA’s SLS rocket that up 400 could be laid off due to “revisions to the Artemis program and cost expectations.”

Boeing SLS employees were informed Feb. 7 that the company was making preparations to cut up to 400 jobs from the program because of “revisions to the Artemis program and cost expectations.” The specific positions being considered for elimination were not announced but would account for a significant fraction of the overall SLS workforce at the company.

This is probably the most significant update from the entire SLS program since it was first proposed by George Bush Jr in 2004. All other announcements either told us there were going to be more delays, the cost was going up, or there were newly discovered technical problems caused by bad management or sloppy work. This announcement instead actually indicates that NASA management — under pressure from the new Trump administration — is finally addressing these failures after two decades.

In the past few months there have been many indications from the swamp in Washington that it is finally beginning to recognize the absurdity and stupidity of the whole SLS/Orion infrastructure, a realization I outlined in detail fourteen years ago, soon after the project was reshaped from the absurd and stupid Ares project under Bush Jr. to SLS/Orion under Obama.

It took however the arrival of Trump (changed himself from his first administration) to do it. Trump is doing what no president has done in our lifetimes, going through all federal programs and ripping them apart if they are failing to do what they promise. And he is doing it with full and amazingly enthusiastic support of the American people. No one cares that government employees are “crying.” Nor does anyone pay attention any longer to these sob stories, put out by the propaganda press. It have proven itself to be habitual liars whose only interest has been prop up the Washington swamp, and everyone now recognizes it.

Expect a major reshaping of NASA and its entire manned program. We will still be heading to the stars, but finally doing it.

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SpaceX to use older Dragon capsule for next manned launch because of issues with new capsule

9:12 am

Ars Technica today reported that because of continuing battery issues with the new Dragon manned capsule, SpaceX now plans to use the older Endurance Dragon capsule for the next manned launch to ISS and prevent further delays in bringing home the two Starliner astronauts.

NASA now believes the vehicle will not be ready for its debut launch until late April. Therefore, according to sources at the agency, NASA has decided to swap vehicles for Crew-10. The space agency has asked SpaceX to bring forward the C210 vehicle, which returned to Earth last March after completing the Crew-7 mission.

Known as Endurance, the spacecraft was next due to fly the private Axiom-4 mission to the space station later this spring. Sources said SpaceX is now working toward a no-earlier-than March 12 launch date for Crew-10 on Endurance. If this flight occurs on time—and the date is not certain, as it depends on other missions on SpaceX’s Falcon 9 manifest—the Crew-9 astronauts, including Wilmore and Williams, could fly home on March 19. They would have spent 286 days in space. Although not a record for a NASA human spaceflight, this would be far longer than their original mission, which was expected to last eight to 30 days.

The new capsule will then be used for Axiom’s fourth commercial flight to ISS, AX-4, presently scheduled for later in the spring.

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NASA calls for the private sector to launch VIPER to the Moon

10:55 am

As a follow-up of its August request for suggestions on how to save its cancelled VIPER rover mission to the Moon, NASA has now issued a request for actual proposals from the private sector for flying the mission, due on March 3, 2025.

The Announcement for Partnership Proposal contains proposal instructions and evaluation criteria for a new Lunar Volatiles Science Partnership. Responses are due Monday, March 3. After evaluating submissions, any selections by the agency will require respondents to submit a second, more detailed, proposal. NASA is expected to make a decision on the VIPER mission this summer.

…As part of an agreement, NASA would contribute the existing VIPER rover as-is. Potential partners would need to arrange for the integration and successful landing of the rover on the Moon, conduct a science/exploration campaign, and disseminate VIPER-generated science data. The partner may not disassemble the rover and use its instruments or parts separately from the VIPER mission. NASA’s selection approach will favor proposals that enable data from the mission’s science instruments to be shared openly with anyone who wishes to use it.

Expect a number of companies to tout their proposals in press releases in the coming weeks.

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NASA suspends numerous advisory committees to comply with Trump executive orders

10:47 am

In what appears to be an over-reaction by NASA, it has ordered that numerous science advisory committees suspend all meetings and work so that it make sure they are complying with Trump’s executive orders requiring the removal of all Diversity, Equity, and Inclusion programs.

More here and here.

The orders listed twenty different working groups as well as the cancellation of the first in-person meeting of the Mercury working group this week.

In reviewing the released list of these groups, only two, the EDIA Working Group (Equity, Diversity, Inclusion, and Accessibility) and the H2O program (Here to Observe), are expressly focused on promoting these racist policies. EDIA’s job is to make sure DEI is implemented across all working groups and science projects. H2O is an educational program restricted to “under-represented students” only, which really means minorities only. All other kids need not apply.

All the other research groups are focused on research and science, not DEI. While a review of their work to make sure they don’t have racial quotas might make sense, it seems NASA’s memos shutting them down entirely during that review appears to be overkill, and might actually be an example of malicious compliance, a tactic used by the bureaucracy to generate bad press against a politician’s policy orders. By over reacting the bureaucrats try to make the elected official’s new policy look stupid.

For example, the cancellation of the first in-person meeting of the Mercury exploration working group (MExAG) seems absurd. It was scheduled to occur this week in Maryland to discuss for example the Japanese/Italian BepiColombo mission, and the sudden cancellation resulted in quotes like this:

“We are forced, therefore, to cancel MExAG 2025,” the Mercury committee’s chair Carolyn Ernst, a planetary scientist with Johns Hopkins University Applied Physics Laboratory, wrote in a memo obtained by Space.com. “This turn of events is shocking and concerning, and is extra painful given the order comes four days before our first in-person meeting.” Some committee members had already begun travel for the meeting, Ernst added.

The nearly three-day hybrid meeting was expected to include at up 200 scientists attending either in person of virtually, one scientist Ed Rivera-Valentin shared on the social media site Bluesky. It was expected to include a number of researchers connected to the BepiColombo Mercury mission run by the Japan Aerospace Exploration Agency and the European Space Agency. The probe just made its sixth flyby of Mercury on Jan. 8.

I can see no logical reason for NASA’s management to cancel this meeting other than to create bad press for Trump.

There one other possibility. NASA’s management might simply be running scared, and has decided it must over-react in order to make sure it doesn’t get fired for appearing defiant.

I must add that the suspension of the Earth science working groups is not related to DEI, but to adhere to the Trump executive orders requiring a review of the government’s global warming and climate research. For that order a larger suspension of work makes more sense.

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Boeing writes off another half billion dollars due to Starliner

10:02 am

In filing an annual report to the SEC, Boeing revealed that has written off another half billion dollars due to Starliner delays and technical problems, bringing the total the company has lost on the capsule to more than two billion.

In the company’s 10-K annual filing with the U.S. Securities and Exchange Commission Feb. 3, Boeing said it took $523 million in charges on Starliner in 2024. The company blamed the losses on “schedule delays and higher testing and certification costs as well as higher costs for post certification missions.”

Both Boeing and NASA remain utterly silent on the future of Starliner. It remains uncertified for operational manned flights, which means Boeing continues to earn nothing from it. Will it have to fly another manned mission on its own dime to get that certification? Or will NASA instead pay it to fly a cargo mission to ISS, as rumors have suggested, to prove the capsule is ready for manned flights?

No one knows. Nor do we know if Boeing will either sell off its space division or cancel Starliner entirely and thus free itself of the problem.

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NASA’s useless safety panel makes another useless announcement about Starliner

10:15 am

An official of NASA’s ineffectual and largely corrupt safety panel yesterday made another meaningless update on the work Boeing is doing to fix the thruster problems that occurred on the first manned flight of its Starliner manned capsule last summer, and as always told us absolutely nothing.

Paul Hill, a member of the Aerospace Safety Advisory Panel (ASAP), said at a Jan. 30 public meeting that the committee was briefed on the status of the investigation into Starliner’s Crew Flight Test (CFT) mission recently. That mission launched in June with NASA astronauts Butch Wilmore and Suni Williams on board, but the spacecraft returned to Earth three months later uncrewed because of agency concerns about the performance of spacecraft thrusters.

“NASA reported that significant progress is being made regarding Starliner CFT’s post-flight activities,” he said. “Integrated NASA-Boeing teams have begun closing out flight observations and in-flight anomalies.” He didn’t elaborate on the specific issues that the teams had closed out but stated that it did not include the thrusters, several of which shut down during the spacecraft’s approach to the station. The propulsion system also suffered several helium leaks. [emphasis mine]

In other words, this announcement was meaningless, because it included no information about the main problem. Hill’s comments were mostly empty blather, which is generally what this panel says in all its announcements. We still do not know when or if Starliner will fly again with astronauts on board.

Over the years the panel has bent over backwards to say positive things about Boeing, so that it missed all of Boeing’s design and construction failures from day one. At the same time it repeatedly slammed SpaceX, even though that company clearly had its act together and ended up fulfilling all of its contract obligations to NASA, even as Boeing has failed to do so.

If I was a member of Trump’s DOGE project, eliminating this safety panel would be very high on my list of things to do to make NASA’s more efficient. All it does is slow things down, often for exactly the wrong reasons.

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Blue Ghost makes second orbital burn, setting up transfer from Earth to lunar orbit

9:14 am

Blue Ghost's first view of the Moon
Blue Ghost’s first view of the Moon.
Click for original image.

Firefly’s Blue Ghost lunar lander has successfully completed its second orbital burn, raising its Earth orbit in preparation for its shift into lunar orbit in the coming weeks.

Routine assessments while Blue Ghost is in transit show that all NASA payloads continue to be healthy. Firefly and NASA’s payload teams will continue to perform payload health checkouts and operations before reaching the Moon, including calibrating NASA’s Lunar Environment Heliospheric X-ray Imager (LEXI), continued transit operations of the Lunar GNSS Receiver Experiment (LuGRE), and analysis of radiation data collected from the Radiation Tolerant Computer (RadPC) technology demonstration.

The picture to the right looks across the top of Blue Ghost, with the small bright object beyond its first image of the Moon. The actual landing is at least four weeks away.

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Congresswoman calls for moving NASA headquarters to Florida

9:29 am

Congresswoman Anna Paulina Luna (R-Florida) has now publicly repeated Governor Ron DeSantis’ call to move NASA’s main headquarters from Washington to Florida, doing so by sending Trump a letter noting the reasons why such a move make sense.

“I write to you in support of relocating NASA’s Headquarters from Washington, D.C. to Florida’s Space Coast,” Luna wrote. “While Washington, D.C., has historically been the home of NASA’s headquarters, the rapidly evolving space landscape demands a more integrated and efficient approach to space policy. Florida’s Space Coast, home to key facilities like the Kennedy Space Center and Cape Canaveral Space Force Station, is uniquely positioned to support this transformation and strengthen America’s leadership in space exploration.”

The lease for NASA’s headquarters building expires in 2028. The agency has already put out a request for proposals for building a new building from scratch, at great cost. I suspect that expensive project is about to die, and the lease expiration will provide the Trump administration and Congress the motive for reducing staffing at headquarters most significantly, as well as moving it elsewhere.

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NASA quickly shutters its DEI offices

9:10 am

NASA has quickly complied with the executive order issued by Donald Trump right after taking office that demanded all Diversity, Equity, and Inclusion (DEI) offices within the federal government be shut down by January 22, 2025 at the latest.

In a memo to employees Jan. 22 obtained by SpaceNews, NASA Acting Administrator Janet Petro said the agency was working to close offices related to diversity, equity, inclusion and accessibility (DEIA) at the agency and cancel relevant contracts. “These programs divided Americans by race, wasted taxpayer dollars, and resulted in shameful discrimination,” she wrote in the memo.

The steps, she wrote, are intended to implement an executive order issued by President Trump hours after his Jan. 20 inauguration. The order called on federal agencies to terminate DEIA programs and positions related to them, calling such efforts “discriminatory” and an “immense public waste.”

That was followed the next day by a memo to federal agencies by Charles Ezell, acting director of the Office of Personnel Management (OPM), directing them to remove “outward facing media” related to DEIA programs by 5 p.m. Eastern Jan. 22 and to place employees of DEIA offices on paid administrative leave. The memo also requires agencies to provide lists of their DEIA offices and employees, as well as related contracts, by Jan. 23, and submit plans for laying off DEIA employees by the end of the month.

As of today it appears the NASA DEI websites have all been removed. It also appears that NASA is complying completely, unlike some government agencies that have tried to save its DEI programs and employees by changing their job titles. We should also expect the racist quota hiring system NASA instituted during the Biden administration to favor some races over others will now be dismantled. Couldn’t happen sooner.

What I have found interesting is the relatively lack of leftist protests — so far — for these actions. It will happen, of course but it also appears the general public won’t buy into it. The leftist propaganda press will highlight those protests, but since very few people trusts or even pays attention to that propaganda press any longer these protests will carry little weight.

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Blue Ghost completes first main mid-course correction engine burn

10:22 am

Firefly’s Blue Ghost lunar lander has not only successfully completed its first major engine burn, raising its Earth orbit as it slowly moves towards the Moon, but successfully used a joint NASA-Italian instrument to pinpoint its location using Earth-orbiting GPS-type satellites.

Jointly developed by NASA and the Italian Space Agency, the Lunar GNSS Receiver Experiment (LuGRE) technology demonstration acquired Global Navigation Satellite System (GNSS) signals, and calculated a navigation fix at nearly 52 Earth radii: more than 205,674 miles (331,000 kilometers) from Earth’s surface. This achievement suggests that Earth-based GNSS constellations can be used for navigation at nearly 90% of the distance to the Moon, an Earth-Moon signal distance record. It also demonstrates the power of using multiple GNSS constellations together, such as GPS and Galileo, to perform navigation.

These results suggest that if all lunar orbiters had this instrument on board, they could all pinpoint their positions precisely and thus eliminate the chance of collision. It also suggests that it might not be necessary, at least immediately, to build a separate GPS-type constellation around the Moon. Earth’s systems could do the job.

Blue Ghost will spend 25 days in Earth orbit, when it will transfer to lunar orbit for several more weeks before attempting a landing.

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General Atomics successfully tests fuels to be used in an in-space nuclear propulsion system

9:16 am

The company General Atomics announced yesterday that it has successfully tested the fuels it wants to use in an in-space nuclear propulsion system for transporting ships to the Moon and beyond much faster and more efficiently than is presently possible with chemical engines.

[General Atomics] executed several high-impact tests at NASA’s MSFC in Huntsville, AL. The nuclear fuel was tested with hot hydrogen flow through the samples and subjected to six thermal cycles that rapidly ramped-up to a peak temperature of 2600 K (Kelvin) or 4220° Fahrenheit. Each cycle included a 20-minute hold at peak performance to demonstrate the effectiveness of shielding the fuel material from erosion and degradation by the hot hydrogen. Additional tests were performed with varying protective features to provide further data on how different material enhancements improve performance under reactor-like conditions.

It has been known since the 1960s the nuclear propulsion is more efficient that chemical engines. It can burn for longer time periods at higher levels, thus making it possible to get to other planets more quickly, in some cases bypassing the need to depend on orbital mechanics.

The problem however has been political. Getting these nuclear engines into orbit has been too much of a political hot potato. The fear of such engines and radioactivity, largely irrational, has made it impossible to get them built. NASA is now trying again.

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Trump picks Janet Petro of Kennedy to be acting NASA administrator, not Jim Free of headquarters

8:41 am

In a surprise move, the Trump administration announced yesterday that the expected person to take over as acting administrator of NASA until Jared Isaacman is approved by the Senate would not be Jim Free. the present associate administrator at NASA headquarters, but Janet Petro, who is presently director of the Kennedy Space Center.

NASA had so much assumed Free had the job that it had already listed him as acting administrator today on the NASA webpage.

There has of course been speculation as to why Trump made this unexpected choice. My guess is that Trump wants to reduce significantly the size of NASA headquarters, and thus wants someone from outside to run it for the present. Petro has been at Kennedy since 2007. Before that she was in the private sector.

Free has been a working out of DC for several years, and thus has stronger ties to the workforce there.

The decision also makes it clear to the NASA bureaucracy who is in charge. Decisions will no longer be made by that bureaucracy without strong input from Trump.

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