Year: 2025

Sierra Space finally completes preflight tests of its Tenacity Dream Chaser mini-shuttle

2:56 pm

Tenacity undergoing recent tow tests
Tenacity undergoing recent tow tests.
Click for original image.

Sierra Space today announced that has finally completed the preflight ground tests of its Tenacity Dream Chaser mini-shuttle required prior to launch.

As part of its comprehensive testing campaign, Dream Chaser underwent Electromagnetic Interference and Electromagnetic Compatibility (EMI/EMC) testing at NASA’s Space Systems Processing Facility (SSPF). These tests verified the spacecraft’s ability to operate within expected electromagnetic environments throughout various missions.

The spacecraft also completed rigorous tow testing at KSC and Space Florida’s Launch and Landing Facility. For this phase, a Freightliner Cascadia truck, provided by Daimler Truck North America, towed the spaceplane at high speeds to simulate critical dynamics and validating autonomous navigational parameters during runway landing operations.

Additionally, Dream Chaser successfully demonstrated the ability to receive telemetry and distribute commands between the spacecraft and Mission Control in Louisville, Colorado over NASA’s Tracking and Data Relay Satellite System network. This key milestone tested the spacecraft’s readiness for real-time command and control during flight operations.

The testing campaign concluded with a post landing recovery rehearsal, which demonstrated the safing of vehicle systems and timely access to sensitive payloads. [emphasis mine]

The electromagnetic and telemetry began more than two years ago — along with standard vibration test — and under normal conditions should have been completed in only a few months. In fact, when that testing began the company expected to launch Tenacity to ISS on a Vulcan rocket sometime in 2024. While the vibration tests completed as expected, the other tests did not. Instead, we waited, and waited, and waited, with no word on the results, suggesting strongly that something had been found that made that launch impossible without significant changes.

The description of the tow tests that I highlighted above add further weight to this speculation. Such tow tests should have been done long before those final electromagnetic, telemetry, and vibration tests. To have to do such tow tests now suggests strongly that those ground tests found something wrong that required changes and further tow tests.

Though NASA has canceled its ISS cargo contract with Sierra using Tenacity, the company says it still plans to launch the mini-shuttle on an orbital demonstration mission late in 2026, with it landing back on a runway at Vandenberg Space Force Base in California.

Don’t put much money on this. This mini-shuttle was first proposed in 2014, and has been repeatedly delayed over and over again. It remains unclear whether it will ever launch.

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November 13, 2025 Quick space links

2:49 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.

  • Op-ed touting the benefits of a spaceport in Yuma, Arizona
    This proposal has been bouncing around Arizona now for about six years, with little progress. Its biggest problem is that almost all launches would have to fly over Mexico, and based on conflicting reports it is unclear Mexico is willing to agree.
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New Glenn successfully launches Escapade orbiters AND lands 1st stage

2:29 pm

New Glenn first stage after landing
New Glenn first stage after landing

Blue Origin today successfully placed two the NASA Escapade Mars orbiters into space, its New Glenn rocket launching for the second time from Cape Canaveral in Florida.

More significantly, the company successfully landed the rocket’s first stage on a barge in the Atlantic. New Glenn is now the second rocket company capable of vertically landing and recovering an orbital first stage, after SpaceX.

Several take-aways: First, this first stage recovery took place almost exactly a decade after Blue Origin successfully landed vertically its suborbital New Shepard rocket, and almost a decade after SpaceX successfully did it with its Falcon 9 orbital rocket. It is a shame that it took Blue Origin so long to get to this point. It is also magnificent that it has finally made it happen. The United States now has two reusable rockets, with two more (by Rocket Lab and Stoke Space) expected to launch by next year.

Blue Origin is not likely to reuse this particular first stage, but its recovery will make future reuses likely and soon.

Second, Blue Origin made one interesting broadcast choice that I like. It listed the rocket’s altitude and speed in feet/miles and miles per hour, not kilometers. The engineers might have been using metric, but the audience is American, so using the traditional Imperial numbers is smart. Good for Blue Origin.

Third, Blue Origin’s announcers were once again annoying, distracting, ignorant, and childishly emotional. And they simply would not shut up, preventing the audience from hearing critical reports from mission control. They also seemed oblivious to reality, bragging repeatedly about the ten year gap between the first New Shepard landing and this landing, as if this was somehow a good thing. It was embarrassing to listen to.

The company would do a far better job selling itself by hiring announcers who are more serious and professional. Sadly, I have noted this problem from Blue Origin’s announcers now for almost a decade, with little change.

Finally, this success is a very big deal, both for Blue Origin and the United States. The company is now primed to begin regular launches next year, including the 27 launches Amazon has purchased for its Kuiper constellation.

For the U.S., this finally gives us a solid competitor to SpaceX. And that competition is finally going to force launch prices to drop significantly. SpaceX dropped prices, but not as far as it could because there was no pressure to do so from anyone else. Now there is that pressure.

As this was only the second launch by Blue Origin in 2025, the leader board for the 2025 launch race remains unchanged:

147 SpaceX
70 China
14 Rocket Lab
13 Russia

SpaceX still leads the rest of the world in successful launches, 147 to 116. Note that ULA hopes to launch its Atlas-5 rocket tonight.

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France’s president puts forth a new national space policy

10:43 am

Capitalism in space: In a speech yesterday France’s president Emmanuel Macron proposed a new national space policy with increased spending for defense and an increased focus on encouraging France’s private space sector. According to his speech, the strategy has five main goals:

  • Maintaining autonomous access to space – ensuring France and Europe retain the independent capability to launch and operate missions without external reliance.
  • Reassessing the industrial and commercial model – promoting competitiveness, public–private cooperation, and the growth of dual-use technologies. [emphasis mine]
  • Expanding strategic and defence capabilities – reinforcing surveillance, secure communications, and the protection of orbital assets against emerging threats.
  • Adopting a more assertive approach to science and exploration – increasing participation in international research missions and developing new exploration technologies.
  • Revitalising European space cooperation – through enhanced competitiveness, a “European preference” in procurement, and new models of governance.

The highlighted point is the most important. Macron clearly wants France’s aerospace industry to lead Europe in space, and to do so he is now officially abandoning his country’s long reliance on doing everything cooperatively through the European Space Agency (ESA) and its commercial arm, Arianespace.

This change has been on-going for the past two years, but Macron has now made it official. France will now do what NASA has been doing for the past fifteen years, shift from the government-run model to the capitalism model, where instead of having ESA and Arianespace build and own everything for France, France will buy what it needs from private European companies, with a emphasis on giving those contracts to French companies.

To do this Macron proposed a 30% increase in spending on civilian space projects through 2030, and a 70% increase in France’s defense budget for that same time period.

France has always had the strongest aerospace industry in Europe, but it has been shackled badly by Europe’s desire to do everything in partnership through a government-run agency, just as America’s space industry was shackled by NASA prior to 2010. If Macron follows through with this policy change, expect some great things from France in space in the coming decade.

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Is China preparing to return its stranded astronauts in its damaged Shenzhou capsule?

10:00 am

According to reports from China, it appears they are preparing to return the three-person Shenzhou-20 crew on their damaged Shenzhou-20 capsule on November 14, 2025, rather than launch a replacement capsule as had been rumored previously.

China has issued a temporary airspace restriction over Inner Mongolia for 3:20 to 3:50 a.m. Eastern (0820-0850 UTC, or 4:20-4:50 p.m. Beijing time) Nov. 14, according to a Notice to Airmen (NOTAM) published by the Hohhot Flight Information Region under the Civil Aviation Administration of China (CAAC).

The airspace closure notice matches an area covering the Dongfeng landing site, an area in Inner Mongolia roughly 60 to 90 kilometers to the east-southeast of the Jiuquan Satellite Launch Center, which has been used for all Shenzhou crewed spacecraft returns since 2021.

None of this is confirmed as yet, as China’s state-run press continues to be very secretive about this entire affair. It as yet not released any details about the damage to Shenzhou-20, nor has it been forthcoming with any details about the next steps it plans to take.

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The earliest observations ever of a supernova exploding suggest the blast was bi-polar

9:29 am

Figure 4 from the paper
Click for full graphic. CSM stands for the
circumstellar matter that surrounded the star
prior to eruption.

Using the Very Large Telescope in Chile, astronomers were able to observe a supernova in its very earliest moments after eruption, the earliest yet, and determined the eruption did not flow outward in all directions, but appeared to be bi-polar, as indicated by the cartoon to the right.

To capture the snapshot of the April 2024 supernova, astronomers used the European Southern Observatory’s Very Large Telescope in Chile, which was able to look at the polarization, or orientation, of the supernova’s light. Using a technique called spectropolarimetry, the researchers used the light’s polarization to re-create the explosion’s shape in its first moments. Their results showed that the light emanated not uniformly, like the light from a typical star, but elongated, shaped like an olive.

You can read their paper here. The cartoon comes from Figure 4, and is their “most plausible” interpretation of the data.

This bi-polar shape suggests that in the initial stages of the eruption the material shot out the star’s poles, as seen routinely in planetary nebulae as well as other eruptive stars like Eta Carina. The data also suggests the initial explosion was shaped by the circumstellar material surrounding the star. Such material tends to concentrate at a star’s ecliptic, like our solar system, With less material at the poles, the initial blast favored those directions.

Theorists will now use this data point to better refine the models that attempt to explain how supernovae explode.

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German rocket startup Isar Aerospace is getting ready for 2nd launch attempt in Norway

9:15 am

Isar's first launch attempt fails
Spectrum falling seconds after its launch
in March 2025

The German rocket startup Isar Aerospace has now delivered the stages of its Spectrum rocket to Norway’s Andoya spaceport, in preparation for its second launch attempt following the first launch failure in March.

On 13 November, an Isar Aerospace update on its social channels revealed that, just over seven months after its first flight ended in a fireball, the company had returned to its launch facilities at the Andøya Spaceport in Norway in preparation for the rocket’s second flight. While brief, the update stated that the main and upper stages for the flight had arrived at the company’s launch pad and that it was “gearing up for pre-flight testing.” The update did not include an expected launch date.

The company in September had completed its investigation into the March failure, determining the failure was an inability of the rocket to maintain its proper attitude control.

Road closure announcements in Norway suggest that this launch will occur prior to December 21, 2025, but this is decidedly unconfirmed. If the launch takes place then and is successful, Norway’s Andoya spaceport will have become the first European-based spaceport to launch an orbital rocket, beating out the two spaceports in the United Kingdom and the Esrange spaceport in Sweden.

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Space energy startup Star Catcher successfully tests power beaming using lasers

9:02 am

StarCatcher laser transmitting to solar panel
StarCatcher laser transmitting power during Florida tests.

Space energy startup Star Catcher last week successfully completed a demonstration in Florida of its power beaming technology, transmitting energy using lasers to off-the-shelf solar panels used by satellites and spacecraft.

Using an advanced suite of multi-wavelength lasers, the team delivered more than 1.1 kW of electrical power to commercial off-the-shelf solar panels at Space Florida’s Launch and Landing Facility. … During the demonstration, Star Catcher delivered one to ten Suns of optical energy to multiple commercial off-the-shelf single- and triple-junction solar panels commonly used in space, confirming compatibility with standard spacecraft hardware, and validating the company’s approach to “supercharge” satellites with significantly more power via highly concentrated beams of light. Among them was an Astro Digital triple-junction solar panel — the same hardware used on the company’s flight-proven satellite buses — demonstrating readiness to power customer missions in orbit.

Star Catcher also delivered power to several customer payloads representing key market segments such as space data centers, in-space manufacturing, and remote sensing. The systems operated on beamed power as customers conducted live experiments, demonstrating both hardware compatibility and strong interest in this emerging power infrastructure.

Among the demonstrations, Star Catcher wirelessly transmitted energy to Intuitive Machines’ Lunar Terrain Vehicle (LTV) and recharged its onboard batteries.

The company plans to fly an orbital power-beaming demonstration satellite next year. If successful, it will try to raise the investment capital to launch power-beaming satellites in both Earth and lunar orbits by 2030, where they can more efficiently provide power. It already has signed six preliminary agreements with a variety of space-based companies such as Intuitive Machines. In the case of rovers like Intuitive Machines LTV, this technology will be an excellent way to charge batteries in the permanently shadowed craters on the Moon, where direct sunlight will not be available.

Hat tip to BtB’s stringer Jay.

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Uzbekistan signs deal to possibly fly astronauts on Vast’s Haven-1 space station

8:28 am

Haven-1 with docked Dragon capsule
Haven-1 with docked Dragon capsule

According to a press release earlier this week from the Uzbekistan government, it has signed an agreement with the American space station startup Vast to possibly fly its astronauts on Vast’s Haven-1 space station, scheduled for launch early next year for a three year mission that will include four two-week manned occupancies.

The parties discussed prospects for long-term cooperation with Vast, including participation in joint scientific research, personnel exchange programs, and the involvement of Uzbek specialists in upcoming missions following the successful launch of the Haven-1 orbital station.

Discussions also covered the potential involvement of Uzbek scientists and engineers in research on artificial gravity, life support systems, and orbital architecture within the framework of the Haven-2 project, the proposed successor to the International Space Station.

Neither Vast nor Uzbekistan apparently made any firm commitments to fly astronauts to Haven-1, but the agreement clearly laid the groundwork for doing so, if not on Haven-1 then on Vast’s follow-up much larger station, Haven-2. At the moment Vast has not yet announced any of passengers or crew for the four Haven-1 manned missions, so there clearly is room for an astronaut from Uzbekistan, assuming it is able and willing to pay the freight.

Hat tip to BtB’s stringer Jay.

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Firefly identifies cause of first stage explosion during static fire test in September

8:01 am

Alpha on the launchpad
The Alpha first stage, prior to September explosion

Firefly yesterday announced it has completed its investigation into the explosion during a static fire test in September that destroyed the first stage of the Alpha rocket during final preparations prior to launch.

Following a thorough review of the Alpha Flight 7 first stage ground test on September 29, Firefly identified a process error during stage one integration that resulted in a minute hydrocarbon contamination, which then led to a combustion event in one of the engines during the ground test. The test stand structure remained intact and no other facilities were impacted.

…Firefly immediately took action and implemented corrective actions, which included increasing inspection requirements for the fluid systems, optimizing the first stage sensors, and incorporating additional automated aborts. Firefly also implemented key process improvements following a daylong quality stand down where the production, integration, and test teams conducted exercises to review and optimize existing procedures. As part of Firefly’s effort to improve reliability and quality, the team will continue to hold regular exercises for sustained process enhancements.

The company also said the problem was not a design issue with the rocket.

It appears from the company’s press release that the contamination occurred because of a work force quality control issue, that required a major daylong review by all their employees to make sure their operations in building the stage would be more rigorous going forward.

The plan now is to pull another first stage from the company’s production line and stack that with the original upper stage. The target date for launch is late this year or early next year, “depending on range availability.”

Firefly had hoped to do five launches in 2025. At this moment it has only attempted one, in April, which failed. That investigation took until mid-September to complete. The next launch attempt was then delayed by the first stage explosion.

I imagine the company very much wants to get at least one launch off this year. I also imagine it is aggressively reviewing its rocket work force due to these issues.

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