Author: Robert Zimmerman

ULA scrubs 2nd Kuiper constellation launch due to technical issue

10:24 am

ULA today scrubbed its second Atlas-5 launch to place 27 more of Amazon’s Kuiper constellation satellites into orbit due to “an engineering observation of an elevated purge temperature within the booster engine.”

At the moment no new launch date has been scheduled.

So far Amazon has only placed 27 operational Kuiper satellites into orbit, on a single Atlas-5 launch in April. According to its FCC license, it must have 1,600 satellites in orbit by July 2026. Though it has contracts to launch these satellites 46 times on ULA rockets (8 on Atlas-5 and 36 on Vulcan), 27 times on Blue Origin’s New Glenn, 18 times on ArianeGroup’s Ariane-6, and 3 times on SpaceX’s Falcon-9, except for SpaceX all these companies have had problems getting off the ground.

Whether Amazon can meet the FAA licence requirement by next year is becoming increasingly questionable.

7 comments

Cruz’s pork/budget bill also adds new taxes to rocket launches

10:08 am

Ted Cruz, a typical
Ted Cruz, a typical “tax-and-spend” Republican

It appears the Senate appropriations bill that was put forth last week by senator Ted Cruz (R-Texas), head of the Senate’s commerce committee, was not simply filled with pork, it also establishes a new tax structure for rocket launches, with the money supposedly allocated to pay for the increased red tape required by the FAA.

Cruz’s section of the Senate reconciliation bill calls for the FAA to charge commercial space companies per pound of payload mass, beginning with 25 cents per pound in 2026 and increasing to $1.50 per pound in 2033. Subsequent fee rates would change based on inflation. The overall fee per launch or entry would be capped at $30,000 in 2026, increasing to $200,000 in 2033, and then adjusted to keep pace with inflation.

You can read the bill here [pdf].

In a statement by Cruz during a senate hearing last week, he justified these new taxes as follows:
» Read more

13 comments

China launches science satellite to study Earth’s electromagnetic fields

9:34 am

China today successfully launched a science satellite built in partnership with Italy and designed to study the interaction of the Earth’s atmosphere with its electromagnetic fields, its Long March 2D rocket lifting off from its Jiuquan spaceport in northwest China.

No word on where the rocket’s lower stages crashed inside China. As for the satellite:

With a designed lifespan of six years, the satellite is equipped with nine payloads, including an electric field detector co-developed by China and Italy, as well as a high-energy particle detector developed by Italy. It will carry out quasi-real-time monitoring of global electromagnetic fields, electromagnetic waves, the ionosphere and the neutral atmosphere, detecting electromagnetic anomalies caused by geological and human activities, as well as monitoring thunderstorm and lightning activity, according to CNSA.

The leaders in the 2025 launch race:

74 SpaceX
34 China
8 Rocket Lab
6 Russia

SpaceX still leads the rest of the world in successful launches, 74 to 55.

Leave a comment

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.

8 comments

June 13, 2025 Quick space links

3:24 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

8 comments

The mad mountains of Mars

10:34 am

The mad mountains of Mars
Click for original image.

Overview map
Click for interactive map

Cool image time! The picture above, cropped to post here, was taken on June 10, 2025 by the high resolution camera on the Mars rover Curiosity, and shows some of the stranger terrain found higher up the flanks of Mount Sharp in Gale Crater.

The blue dot on the overview map to the right marks Curiosity’s present position, where it is doing another drilling campaign into the first boxwork geology it has encountered. The white line marks its past travels, while the green dotted line its planned route.

The yellow lines indicate the area seen in the picture above. The wild mountain peaks on the horizon are part of the sulfate-bearing unit that appears very bright in the overview map. The material that makes up this terrain appears to be very easily eroded, based on its features as seen from orbit, as well as Curiosity’s distant view. Whether that erosion was wind, water, or ice, remains undetermined, and is the main question Curiosity will attempt to answer once it gets there, likely in a year or so.

Regardless, the landscape appears almost like it soft sand being washed away.

Where the rover will go next the science team has not yet decided. It will definitely continue uphill, but they do not yet know the route they will take through that sulfate-bearing unit.

3 comments

SpaceX launches 23 more Starlink satellites

9:16 am

SpaceX this morning successfully placed 23 Starlink satellites into orbit (including 13 with phone-to-satellite capabilities), its Falcon 9 rocket lifting off from Cape Canaveral in Florida.

The first stage completed its 21st flight, landing on a drone ship in the Atlanta.

The leaders in the 2025 launch race:

74 SpaceX
33 China
8 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 74 to 54.

Leave a comment

French startup The Exploration Company launches its own recovery ship

9:10 am

The French startup, The Exploration Company, has now launched its own ship designed to recover its next prototype test cargo capsule, set to launch on a Falcon 9 on June 21, 2025.

In an 11 June update, The Exploration Company announced that the recovery vessel tasked with retrieving the Mission Possible capsule after splashdown had departed the previous day from a harbour in Alaska. The vessel, named Makushin Bay, is a 40-metre salvage and rescue ship owned and operated by US-based maritime logistics company Resolve Marine. Two members of The Exploration Company’s team will accompany the vessel on its mission. Over the next week, it will make its way to the expected splashdown zone in the central Pacific Ocean. According to The Exploration Company, current weather conditions appear favourable for both splashdown and recovery operations.

The company aims to provide cargo to the commercial space stations under development using its proposed Nyx capsule. As part of its own development program it has flown a smaller prototype already on the first launch of Europe’s Ariane-6 rocket, but was unable to test its re-entry capability because of a failure in that rocket’s upper stage. This second larger prototype will try again, and this time has a better shot at completing its test because it if flying on SpaceX’s very reliable Falcon 9. Thus, the launch of this recovery vessel.

Leave a comment

Kazakhstan moves west

9:01 am

Two stories today suggest that Kazakhstan is shifting its politics away from Russia and towards the west, albeit carefully and with an eye to avoid poking the bear that lives so close by.

First, the government’s tourism agency announced plans to develop tourism at its Baikonur spaceport.

Participants discussed infrastructure upgrades, the creation of new travel routes, brand strengthening, investment attraction and partnerships to support long-term development.

According to Kazakh Tourism Сhairman Kairat Sadvakasov, the concept focuses on building a sustainable tourism ecosystem during the periods between rocket launches. The goal is to integrate Baikonur into Kazakhstan’s cultural, educational and scientific agenda.

Both the Soviet and Russian governments have always treated Baikonur as a classified military installation, and forbid such visitation, including vetoing public viewing areas areas. Kazakhstan has likely seen the cash earned by India and U.S. by allowing such spaceport tourism, and wants some for itself. Evidently it now thinks the Russians no longer have the clout to stop it from doing so.

Next, Kazakhstan’s government announced it has signed a deal with SpaceX to introduce Starlink into the country.

The agreement ensures that Starlink will comply with Kazakhstan’s legal and regulatory requirements, including those related to information security and communications. Until now, Starlink operated in the country only on a pilot basis, providing internet access exclusively to schools.

The upcoming launch will allow citizens to legally purchase, register, and use Starlink terminals. The service aims to improve high-speed internet access in remote and hard-to-reach regions, supporting rural schools, healthcare centers, mobile units, and infrastructure sites – particularly in areas where laying fiber-optic networks is not feasible.

This deal also suggests a change in Kazakhstan’s relationship with Russia. Starlink is blocked from Russia due to its invasion on the Ukraine. Yet the service is now available to both Kazakhstan and the Ukraine, formerly part of the Soviet Union and directly adjacent to Russia. That Kazakhstan is publicly permitting Starlink in is a clear statement that it wants the same technology as the Ukraine to better protect it from a Russian invasion.

It also suggests a decline in Russia’s influence inside Kazakhstan. Previously if the Russians said jump, the Kazakhstan government would ask, “How high?” Now it appears it is willing to act more independently, and in ways that are not necessarily in Russia’s interests.

One wonders if this shift could go as far as Kazakhstan trying to sell Baikonur as a launch site for other commercial entities, such as from India, China, and Europe. I doubt many would buy the service (Baikonur is not well located compared to other spaceports), but the very offer would signal a major political shift in this part of the world.

5 comments

June 12, 2025 Quick space links

2:52 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

19 comments

Why Kennedy’s decision to fire everyone at the CDC advisory panel was only a start

11:57 am

Sudden collapse
One of many sudden public collapses from jab-induced heart failure.
Click for full video.

On June 9, 2025 the head of the Health and Human Services at the federal government Robert Kennedy fired all seventeen members of the Centers for Disease Control and Prevention’s (CDC) Advisory Committee for Immunization Practices (ACIP).

According to Kennedy, each member was appointed by the Biden administration as part of a “concerted effort to lock in public health ideology” and to limit the Trump administration from taking “the proper actions to restore public trust in vaccines.” ACIP members usually serve four-year terms. Because 13 appointees took their seats in 2024, without the complete ouster, the committee would not have had a Kennedy-selected majority until 2028.

“A clean sweep is necessary to reestablish public confidence in vaccine science,” Kennedy said in the HHS release. He will be responsible for appointing the new committee members, which are scheduled to meet from June 25 to June 27 to discuss a slate of vaccines, including those for anthrax, chikungunya, COVID-19, cytomegalovirus, influenza and HPV.

All the usual suspects on the left, including members of Congress and in the propaganda press, immediately went into a hissy-fit, claiming Kennedy’s action was “politicizing the ACIP,” even though it is blatantly obvious that Biden had made his 2024 appointments, just before the election, for his own political reasons.

Politics aside, however, the real reason to dump these Biden-era appointees is that they were also part of the “intellectual” cabal that foisted jab mandates, mask mandates, six-foot social distancing, and lockdowns on everyone. None of these policies were based on any proven science research, and in fact they violated decades of infectious disease policy that recommended doing the exact opposite, across the board.

Worse, there is now clear evidence [pdf] that these same people demanded the imposition of jab mandates, even though they were well aware at the time that the jab caused serious side effects that killed. As noted in this June 11, 2025 report:
» Read more

14 comments

Voyager Technologies raises nearly $400 million in first public stock offering

9:43 am

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

The space station startup Voyager Technologies has now raised $383 million during its first public stock offering this week, with the possibility of more investment capital to come.

The six-year-old provider of mission-critical space and defense technology solutions sold 12.35 million shares at $31 each, pricing above the $26–$29 range it marketed last week. The Denver-based company had initially planned to offer 11 million shares.

Underwriters also have a 30-day option to purchase up to 1.85 million additional shares of the company’s Class A common stock, up from 1.65 million, trading under the ticker symbol VOYG.

Of the four private commercial space stations under development, Voyager is the only one to have so far built nothing. Its station, dubbed Starlab, is conceived as a single large module launched on SpaceX’s Starship/Superheavy rocket. Though the company has obtained a $217.5 million development grant from NASA, and is partnering with Airbus, Northrop Grumman, and the European Space Agency, it has focused so far all of its work on design.

We must assume the company intends to use this additional public capital to begin some construction. It likely needs to if it is to have any chance of winning NASA’s major contract for building the station itself, since all of its other competitors are doing so. My present rankings for these four projects:

  • 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 to launch momentarily, 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. 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.
5 comments

Europe’s Solar Orbiter takes first images of the Sun’s south pole

9:27 am

The south pole of the Sun
Click for original image.

Because its orbit has now dropped 17 degrees below the ecliptic plane of the solar system, the European Space Agency’s (ESA) Solar Orbiter probe has been able to snap the first images of the Sun’s south pole, as shown by the two pictures to the right.

The [two images show] the Sun’s south pole as recorded on 16–17 March 2025, when Solar Orbiter was viewing the Sun from an angle of 15° below the solar equator. This was the mission’s first high-angle observation campaign, a few days before reaching its current maximum viewing angle of 17°.

The instruments each observe the Sun in a different way. PHI images the Sun in visible light (left) and maps the Sun’s surface magnetic field (right).

The magnetic field data on the right has revealed that at present the field at the pole is “a mess,” because the Sun is presently at solar maximum.

While a normal magnet has a clear north and south pole, the PHI instrument’s magnetic field measurements show that both north and south polarity magnetic fields are present at the Sun’s south pole. This happens only for a short time during each solar cycle, at solar maximum, when the Sun’s magnetic field flips and is at its most active. After the field flip, a single polarity should slowly build up and take over at the Sun’s poles. In 5–6 years from now, the Sun will reach its next solar minimum, during which its magnetic field is at its most orderly and the Sun displays its lowest levels of activity.

Solar Orbiter is now well positioned to observe the expected changes in the Sun’s magnetic field as sunspot activity ramps down to solar minimum.

Leave a comment

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.

5 comments

June 11, 2025 Quick space links

2:45 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

  • Sierra Space creates a division focused solely on military contracts
    The company is attempting to latch onto money coming from Trump’s proposed “Golden Dome” project. It is also telling us indirectly that its space division might be having problems. The first launch of its Tenacity mini-shuttle remains endlessly delayed (for unexplained reasons that could be unfortunate) and its partner in the Orbital Reef space station project, Blue Origin, continues to disappoint. It could be that management is now going where the money is, even if it isn’t in space exploration.
12 comments

House committee moves to eliminate Trump budget cuts to Space Force

10:45 am

Useless: In its first review of Trump’s proposed budget cuts for the Space Force, the House Appropriations Committee, under Republican leadership, immediately moved to not only eliminate those cuts, but to increase the Space Force budget another $300 million.

And these turkeys are adding this money even though they admit, due to Congress’s incompetent budget process, they really have no way to determine exactly how the money will be spent.

The House Appropriations committee took the first step in crafting a FY2026 bill to fund the Department of Defense today, albeit reluctantly. Appropriators from both parties lamented the paucity of data they have about what the money will be used for, but decided to move ahead and mark up their bill at subcommittee level this afternoon. Full committee markup is scheduled for Thursday. President Trump’s request would cut about $2.5 billion from the U.S. Space Force’s budget, but the committee would restore it and add a little more.

According to the new budget put forth by this committee, the Space Force will have a budget of $29 billion, more than even the highest budget figure proposed for NASA.

This is what we can expect now from the Republican leadership in Congress. They will cut nothing, but instead restore all the spending that Trump attempts to eliminate, even money that is expressly designed to help leftist causes. They are worse than useless.

What these idiots don’t realize that if the country goes bankrupt, it will become impossible to accomplish anything. A smart person would realize it is better to only get part of what you want now (so you can maybe get the rest later) than to try to get it all immediately and instead end up with nothing at all.

But then, these are Congressmen. The word “smart” is the last word I would use to describe them.

12 comments

Chinese robotic servicing satellite now approaching another Chinese servicing satellite

9:39 am

It now appears that one Chinese robotic servicing satellite, Shijian-25, is now approaching another Chinese servicing satellite, Shijian-21, and it is expected that the two will eventually dock in order to test refueling technology.

Shijian-25 was launched in January to test on-orbit refueling and mission extension technologies, while Shijian-21 was launched in October 2021.

Shijian-21 has already executed its primary mission, docking with the defunct Beidou-2 G2 navigation satellite and towing it into a graveyard orbit above GEO. It had been passively drifting westward in GEO for much of the last year, according to COMSPOC, suggesting it may have run out of fuel, but it recently initiated maneuvers taking it towards Shijian-25.

Shijian-21 has since parked at 127.5 degrees East. Now, Shijian-25 is drifting eastwards towards Shijian-21. The two satellites are in a phased orbit, meaning their key orbital elements—such as semi-major axis, eccentricity, inclination, right ascension of the ascending node and argument of perigee—are nearly identical, but remain separated by a distance along the same path. This minimizes fuel required for a future rendezvous. The pair are expected to meet June 11 at current rate of approach, though Shijian-25 will likely slow down as it closes in.

In other words, China used the older satellite to test docking and tug operations, and now plans to use the new satellite to refuel it for further operations.

Nor are these the only satellites that are maneuvering into the area. Two American military surveillance satellites have moved in, are flying in parallel, and are likely there to observe the Chinese operations.

One comment

Two spaceports in Alaska sign partnership agreement

9:28 am

Alaska spaceports

The Alaska Aerospace Corporation, which runs the Kodiak spaceport in Alaska, has now signed a five year partnership agreement with University of Alaska’s Geophysical Institute in Fairbanks, which runs the Poker Flat suborbital spaceport, to upgrade the latter for commercial orbital launches.

Though the terms of that agreement are highly technical, Gov. Mike Dunleavy’s draft budget for the corporation indicates that the university plans to seek a FAA spaceport license for the university’s Poker Flat Research Range, which has been flying sounding rockets — smaller rockets used for research — into the upper atmosphere since March 1969, including some earlier this spring.

An FAA license could allow Poker Flat to launch larger rockets, and for commercial purposes, not just scientific ones. Making Poker Flat a “licensed vertical orbital spaceport” could take up to two years, the budget documents state.

The map to the right shows the location of each spaceport. You can read the text of the agreement here [pdf].

Kodiak has been used recently by several orbital rocket startups, most often by Astra. Poker Flat in turn has only done suborbital launches (mostly for universities), and its interior location suggests it would have a very limited capability to do orbital launches. The lower stages of any orbital rocket would crash either in Alaska or Canada, something that neither the U.S. or Canada has previously allowed.

The deal however allows both spaceports to coordinate their effort, which might bring more business to both, for different purposes.

3 comments

Europe approves SES purchase of Intelsat

9:00 am

The European Commission has now approved the purchase of the long established satellite communications company Intelsat by the long established Luxembourg satellite communications company SES for about $4 billion.

This decision follows an approval by the government of the United Kingdom. It now appears the only remaining regulatory hurdle is approvals by the FCC and the Department of Justice in the U.S.

This buy-out follows similar mergers by other old established satellite companies, such as the merger of Viasat with Imarsat and OneWeb with Eutelsat. All are occurring because these older companies, which mostly launched large geosynchronous satellites, have been under heavy competitive pressure from the low orbit constellations like Starlink and OneWeb.

Whether these older companies can compete following these mergers however remains uncertain. To succeed they need to have a product customers want, and at the moment it isn’t clear they have one.

Leave a comment

Axiom’s fourth commercial manned mission scrubbed due to leak

8:04 pm

Axiom and SpaceX have scrubbed the launch tomorrow of Axiom’s fourth commercial manned mission to ISS due to an oxygen leak detected during the standard prelaunch static fire test.

NASA, Axiom Space, and SpaceX are standing down from the launch opportunity on Wednesday, June 11, of Axiom Mission 4 to the International Space Station to allow additional time for SpaceX teams to repair a liquid oxygen leak identified during post-static fire Falcon 9 rocket inspections. A new launch date for the fourth private astronaut mission will be provided once repair work is complete, pending range availability.

There a number of launches already scheduled for Florida in the next few days, so it could be that the launch of Ax-4 could be delayed by more than a few days.

3 comments

June 10, 2025 Quick space links

2:19 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

I post this early because I have a hour-long taping with Robert Pratt of Pratt on Texas this afternoon, and want to get it up beforehand.

One comment
1 2 3 4 5 … 1,104