Author: Robert Zimmerman

Jordan to sign the Artemis Accords

7:42 pm

According to a press announcement tonight from NASA, Jordan will sign the Artemis Accords on April 23, 2026 at NASA headquarters in Washington, DC.

NASA Administrator Jared Isaacman will host Ambassador Dina Kawar of the Hashemite Kingdom of Jordan and U.S. Department of State Principal Deputy Assistant Secretary for Oceans and International Environmental and Scientific Affairs Ruth Perry for the ceremony.

Jordan becomes the 63rd nation to sign the accords. It also joins Bahrain, Oman, Saudi Arabia, and the United Arab Emirates from the Arab Middle East. While it is certainly wise to not trust any nation controlled by Islam, having these nations allied with us in space will help mitigate the worst aspects of their religion. That they are also joining a space alliance that includes Israel is another indication that they are realizing that their future is better aligned with Israel than against it.

The full list of nations in this American space alliance is as follows:

Angola, Argentina, Armenia, Australia, Austria, Bahrain, Bangladesh, Belgium, Brazil, Bulgaria, Canada, Chile, Colombia, Cyprus, Czech Republic, Denmark, Dominican Republic, Ecuador, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, India, Israel, Italy, Japan, Jordan, Latvia, Liechtenstein, Lithuania, Luxembourg, Malaysia, Mexico, the Netherlands, New Zealand, Nigeria, Norway, Oman, Panama, Peru, Poland, Portugal, Romania, Rwanda, Saudi Arabia, Senegal, Singapore, Slovakia, Slovenia, South Korea, Spain, Sweden, Switzerland, Thailand, the Philippines, the United Kingdom, the United Arab Emirates, the Ukraine, the United States and Uruguay.

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Japan to do test launch of its H3 rocket in June

1:28 pm

Japan’s space agency JAXA is now planning a test launch on June 10, 2026 of its H3 rocket, carrying a dummy payload only in order to test the changes it has made in the rocket after a failed launch in December 2025.

The failure of the eighth H3 rocket was likely caused by an adhesion problem in the satellite mounting structure, which led it to break apart during flight, according to an investigation by JAXA. Similar issues were found in other units, prompting the space agency to fix them so the components can maintain their structural integrity.

In the June launch, a dummy satellite will be mounted on the test vehicle to collect data and verify the effectiveness of the measures. For future launches of actual satellites or space probes, JAXA plans to review the mounting structure design to reduce the risk of failure.

In other words, the method for attaching the payload to the rocket at some points failed, so that the satellite separated prematurely. The June launch will be to test a new mounting system.

Posting has been light the last few days as I deal with recovery from knee surgery.

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Two launches by SpaceX

12:02 am

In the past two days SpaceX completed two more launches. The first, yesterday morning, placed 25 more Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California. The first stage completed its 8th flight, landing on a drone ship in the Pacific.

Then tonight SpaceX launched a GPS satellite for the Space Force, its Falcon 9 rocket lifting off from Cape Canaveral Space Force Station in Florida. The first stage completed its 7th flight, landing on a drone ship in the Atlantic. That drone ship, “Just read the instructions,” is now being shifted to support Starship operations, and will no longer be used for Falcon 9, after supporting 155 first stage landings. What it will do in connection with Starship has not been made clear. The two fairing halves completed their 2nd and 3rd flights respectively.

The Space Force had originally intended to launch this satellite on a ULA Vulcan rocket, but a month ago it shifted the contract to SpaceX because of the nozzle problem that has plagued two different ULA Vulcan launches. Because of this shift, the time from contract award to launch was the quickest by SpaceX for the Space Force.

The leaders in the 2026 launch race:

48 SpaceX
21 China
6 Russia
5 Rocket Lab

For the third straight year SpaceX continues to lead the entire world combined in total launches, 48 to 37.

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NASA’s IG: With only Axiom building NASA’s future spacesuits, the agency’s lunar program faces great scheduling risk

12:23 pm

Axiom's two spacesuits being tested underwater
Axiom’s two spacesuits being tested underwater in October 2025.
Click for original.

According to NASA’s inspector general’s report today [pdf] on the state of NASA’s effort to create new spacesuits for use by its astronauts on future space stations as well as in its Artemis lunar program, the planned schedules for the lunar landing and those stations are threatened because the agency presently has only one contractor, Axiom, building new suits, and has not established any spacesuit standardization rules should it want to issue contracts to others. From the report’s conclusion:

While NASA is taking steps to mitigate schedule risk, it must also contend with the unique risks inherent to a single-provider environment until future competition is introduced. … If Axiom cannot satisfy its contractual requirements in a timely or cost-effective manner, then NASA could be forced to continue using the problematic EMUs throughout the life of the ISS and significantly adjust its lunar plans. [EMUs are the complex suits presently used on ISS, and would not work well for any lunar landing mission.]

While xEVAS [the new suit concept] is flexible enough to allow for additional providers, doing so may not help the Agency meet its more immediate Artemis goals. Critically, NASA must address existing design and safety risks resulting from the lack of standard requirements for spacesuits to be compatible with various lunar spacecraft and assets.

As shown by the photo above, the development of Axiom’s spacesuit has been proceeding, and seems likely to be available for next year’s Artemis-3 Earth orbit test mission. At the same time, it is still behind schedule, a fact that has been mitigated because NASA’s entire Artemis program is equally behind schedule.

The report lists three commercial companies that might be able to provide alternative suits, and thus some redundancy, as shown by the image below.
» Read more

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Hubble looks at the Trifid Nebula again

9:59 am

Trifid Nebula as seen by Hubble
Click for original image.

Cool image time! The picture to the right, cropped to post here, was taken by the Hubble Space Telescope and released today. It shows a small section of the Trifid Nebula, located about 5,000 light years away.

This location has been imaged numerous times in the past by Hubble. The area shown illustrates some fundamental aspects of stellar and nebula formation. The dark area in the lower right is a thick dust cloud. Several energetic O and B supermassive stars are out of view at the top. The radiation from these stars (indicated by the blue), is hitting that dust cloud and literally destroying it. It appears that the foreground “horn” exists because a larger object is blocking the radiation, allowing dust to survive in the background.

I have no explanation for the background “horn”.

This new image was taken in parallel with an image of the entire Trifid Nebula, taken by the new Rubin Telescope in Chile. Though Rubin cannot see with the same resolution as Hubble, its image is quite worthwhile viewing.

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New Glenn launches for 3rd time, reuses first stage and lands it, but fails to put satellite in correct orbit

11:54 am

New Glenn's first stage, just prior to landing
New Glenn’s first stage, just prior to landing

Blue Origin in the early morning hours today successfully completed the third launch of its New Glenn rocket, lifting off from Cape Canaveral Space Force station in Florida and placing in orbit AST SpaceMobile’s Bluebird-7 cellphone satellite. For Blue Origin, this launch was the first for a commercial outside customer, a significant step forward for the company, which has sadly earned a reputation for operating too slowly.

Unfortunately, according to an update from Blue Origin the satellite was deployed but in an “off nominal orbit.” An update just posted by AST states the satellite is a loss and is being de-orbited. This satellite would have been the seventh in AST SpaceMobile’s 45-60 satellite constellation designed to act as cell towers in space. AST hopes to have at least half the constellation in orbit by the end of ’26. Several major phone companies, such as AT&T, Verizon, and Vodaphone in Europe, have already signed on.

For Blue Origin, the launch wasn’t a total failure. The rocket’s first stage had flown in November 2025 on the second New Glenn flight, and was refitted (with a new set of engines) to fly again on this flight, the rocket’s third. It not only did its job, getting the upper stage into space, it successfully landed for the second time on New Glenn’s barge in the Atlantic. This fast reuse and successful landing should do a great deal to improve the company’s slow reputation. Unfortunately, the failure to deliver the customer’s satellite will counter that most significantly.

As for Blue Origin, this was its first launch in 2026, and it was also unsuccessful. The leader board for the 2026 launch race remains unchanged:

The leaders in the 2026 launch race:

46 SpaceX
21 China
6 Russia
5 Rocket Lab

For the third straight year SpaceX continues to lead the entire world combined in total launches, 46 to 37.

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EU releases revised Space Act proposal, and it is as odious as the earlier drafts

11:24 am

The European Union
This label would be more accurate if it read
“NOT made in the European Union”

The Council of the European Union (EU) in Brussels at the end of March released [pdf] a revised draft of its proposed Space Act that would impose a single regulatory framework for all space activities across the entire EU.

I have just finished reading this odious 157-page monstrosity, and I can say without question if passed it will not only isolate Europe from all international space commercial activity, it will squelch any possibility that Europe will develop its own space industry.

The first draft of the law, first put forth in 2025, was routinely blasted by American officials, by think tanks in and out of Europe, and by industry representatives. It imposed byzantine regulations on Europe’s space industry while also demanding that non-European companies be required to follow these rules as well, national sovereignty be damned.

The newly released draft does the same, but now does so in a manner that is somewhat vague and unclear.

That lack of clarity includes what is required to comply with the regulations. “There are a lot of things where it says you need to do X. What counts as X? Who knows,” said Gabriel Swiney, director of the Office of Space Commerce’s policy, advocacy and international division. “It will probably be determined at some point by some European committee or standards body.”

“Without regulatory clarity with what the regulatory picture should be, it’s really going to have a stifling effect on what industry is striving to do,” said Janna Lewis, senior vice president of policy and general counsel for Astroscale U.S.

The first draft was delayed and apparently rejected because the member nations of the EU opposed it. It appears this new version, having done nothing to ease their concerns, might already be on its way to the dead letter office.

We shall see. If there is anything dear to the hearts of the EU bureaucrats in Brussels, it is imposing insane regulations on others. It appears those bureaucrats haven’t given up — despite opposition by numerous European governments — and are working hard to win that right in space.

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Final ground testing begins of Katalyst’s Swift rescue spacecraft

5:46 am

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

Only seven months after NASA awarded the satellite repair startup Katalyst the contract to save the Gehrels-Swift space telescope, the company has delivered the completed LINK spacecraft to the Goddard Space Flight Center in Maryland for final ground testing.

Katalyst will move forward with LINK’s vibration and thermal tests using NASA Goddard’s in-house facilities in the coming weeks before installation into Northrop Grumman’s Pegasus rocket at the agency’s Wallops Flight Facility in Virginia.

Gehrels-Swift has been one of NASA’s most productive space telescopes. Unfortunately its orbit is decaying and if nothing is done to raise that orbit it will burn up in the atmosphere in 2029 or so. To extend this timeline engineers have stopped almost all science work in February.

Katalyst hopes to launch LINK as soon as later this year. It was able to get it built so quickly because it was already under construction as the company’s first demo of its repair technology. When NASA put out a bid for boosting Swift, the company shifted gears and reconfigured LINK for this mission.

If successfully, the achievement will be a major coup for this startup.

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Engineers shut down another instrument on Voyager-1

5:31 am

The Voyager missions
The routes the Voyager spacecraft have
taken since launch. Not to scale.

Due to the continuing and expected decline in power, engineers have now shut down another instrument on Voyager-1 in the hope of keeping the spacecraft operating for just a few more years.

On April 17, engineers at NASA’s Jet Propulsion Laboratory (JPL) in Southern California sent commands to shut down an instrument aboard Voyager 1 called the Low-energy Charged Particles experiment, or LECP. The nuclear-powered spacecraft is running low on power, and turning off the LECP is considered the best way to keep humanity’s first interstellar explorer going.

The LECP has been operating almost without interruption since Voyager 1 launched in 1977 — almost 49 years. It measures low-energy charged particles, including ions, electrons, and cosmic rays originating from our solar system and galaxy.

…The choice of which instrument to turn off next wasn’t made in the heat of the moment. Years ago, the Voyager science and engineering teams sat down together and agreed on the order in which they would shut off parts of the spacecraft while ensuring the mission can continue to conduct its unique science. Of the 10 identical sets of instruments that each spacecraft carries, seven have been shut off so far. For Voyager 1, the LECP was next on that list. The team shut off the LECP on Voyager 2 in March 2025.

Both spacecraft now have only three operating science instruments. Engineers hope a major reboot on both spacecraft planned later this year might make each operate more efficiently, allowing both to survive maybe until 2030. At a minimum the hope is to make them last until 2027, which would the fiftieth anniversary of their launch.

The bottom line remains: the nuclear power source on board both is running down. The goal now is less gathering science data and more engineering: How long can we keep these spacecraft alive, at the very outskirts of our solar system?

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