Tag: competition

Chinese pseudo-company completes successful hop test of rocket

12:04 pm

YXZ-1 completing soft splashdown vertically
YXZ-1 completing soft splashdown vertically.
Click for movie.

The Chinese pseudo-company Space Epoch (also called SEpoch) announced today a successfully hop test yesterday where its prototype YXZ-1 grasshopper-type test prototype completed a vertical launch to an altitude of about 1.5 miles, shut down its engines, then relit them to achieve a soft splashdown over water.

The test article used thin-walled stainless steel and had a diameter of 4.2 meters, a total height of 26.8 meters and a takeoff mass of about 57 tons, according to Space Epoch. The test lasted 125 seconds and reached around 2.5 kilometers in altitude. The test article used Longyun methane-liquid oxygen engines provided by [pseudo]-commercial firm Jiuzhou Yunjian (JZYJ).

Sepoch says the test has laid a solid foundation for the first full flight of the YXZ-1, also known as Hiker-1 in English, later this year.

Without question China’s pseudo-companies as well as its official state space divisions are aggressively pursuing reusable rockets, far more aggressively than any companies (other than SpaceX) in the west. There are at least nine Chinese pseudo-companies or government agencies testing rockets that can land vertically (Space Epoch, Landspace, Deep Blue, Shanghai Academy of Spaceflight Technology, Chinese Academy of Sciences, Space Pioneer, Ispace, Galactic Energy, Linkspace), with eight having attempted hop tests with mixed results.

In the west, only SpaceX is flying reusable rockets. Blue Origin’s New Glenn is supposed to be reusable, but it has only launched once and on that flight its first stage failed to land successfully. The company has only done hop flights with its small suborbital New Shepard spacecraft. Rocket Lab is building its reusable Neutron rocket, but it also has never done any hop tests with that rocket. Stoke Space plans a completely reusable rocket, with the second stage returning as well, and has done one short hop test of a prototype of that stage. Other rocket companies are designing or developing such rockets, but none have done any hop tests.

In general China’s rocket industry appears far ahead in this race.

Hat tip to BtB’s stringer Jay.

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China launches classified satellite

10:02 am

China today successfully launched a classified Earth observation satellite to do “national land surveys, environmental management and other fields,” its Long March 4B rocket lifting off from its Jiuquan spaceport in northwest China.

No word on where the rocket’s lower stages, which use very toxic hypergolic fuels, crashed inside China.

The leaders in the 2025 launch race:

65 SpaceX
32 China
6 Rocket Lab
6 Russia

SpaceX still leads the rest of the world in successful launches, 65 to 51.

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South Korea rocket startup launches small prototype rocket

9:45 am

Unastella rocket at launch
Unastella rocket at launch

A South Korea rocket startup dubbed Unastella on May 28, 2025 successfully launched a small prototype suborbital rocket from its own launch site near the country’s southern coast.

UNA EXPRESS-I is 9.45 meters long and has a total weight of 2 tons. It is a small launch vehicle that uses kerosene (jet fuel) and liquid oxygen as fuel, with a thrust of 5 tons. The vehicle successfully completed its flight to the target distance of 10 kilometers and fell into the maritime safety zone set by Goheung County, the company stated. Park Jae-hong, the CEO of Unastella, noted, “For the first launch, we lowered the altitude for safety and extended the reach.”

This is South Korea’s second rocket startup that has launched a small test prototype, the first being Innospace which launched its test rocket from Brazil in 2023 and hopes to do an orbital launch before the end of the year.

It appears that South Korea is shifting successfully to the capitalism model. Back in 2023 it was trying to develop its government-built Nuri rocket, but that development seems to have stalled. Since then its newly formed space agency has established policies encouraging private space commercialization, which has apparently resulted in these two new rocket companies.

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China launches its first asteroid sample return mission

12:28 pm

China today successfully launched Tianwen-2, its first mission attempting to return a sample from a near Earth asteroid, its Long March 3B rocket lifting off from its Xichang spaceport in southwest China.

Video of the launch can be found here. The probe will take about a year to reach asteroid Kamo’oalewa, where it will fly in formation studying it for another year, during which time it will attempt to grab samples by two methods. One method is a copy of the touch-and-go technique used by OSIRIS-REx on Bennu. The second method, dubbed “anchor and attach,” is untried, and involves using four robot arms, each with their own drill.

Some data suggests Kamo’oalewa is possibly a fragment from the Moon, but that is not confirmed.

After a year studying Kamo-oalewa, Tienwen-2 will then return past the Earth where it will release its sample capsule. The spacecraft will then travel to Comet 311P/PANSTARRS, reaching it in 2034. This comet is puzzling because it has an asteroid-like orbit but exhibits activity similar to a comet.

As for the launch, there is no word where the Long March 3B’s lower stages and four strap-on boosters, all using very toxic hypergolic fuels, crashed inside China. It should be noted that the video I link to above was taken by an ordinary citizen watching from a hill nearby, bringing with him a group of children as well. Considering the nature of the rocket’s fuel (which can dissolve your skin if it touches you), China’s attitude is remarkably sanguine to not only drop these stages on its people, but to allow tourists to get so close to launches.

The leaders in the 2025 launch race:

65 SpaceX
31 China (with one more launch scheduled later today)
6 Rocket Lab (with one launch scheduled for today SCRUBBED)
6 Russia

SpaceX now leads the rest of the world in successful launches, 65 to 50.

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SpaceX launches more Starlink satellites

8:51 am

The beat goes on! SpaceX this morning successfully placed another 27 Starlink satellites into orbit (including 13 with cell-to-satellite capabilities), its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida.

The first stage completed its nineteenth flight, landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

65 SpaceX
30 China (with two launches scheduled later today)
6 Rocket Lab (with one launch scheduled for today SCRUBBED)
6 Russia

SpaceX now leads the rest of the world in successful launches, 65 to 49.

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SpaceX launches Starship/Superheavy on ninth test flight, but experiences issues in orbit

5:40 pm

Starship in orbit before losing its attitude control
Starship in orbit before losing its attitude control

SpaceX today was able to successfully launch Starship and Superheavy on its ninth test flight, lifting off from SpaceX’s Starbase spaceport at Boca Chica.

The Superheavy booster completed its second flight, with one of its Raptor engines actually flying for the third time. Rather than recapture it with the launchpad chopsticks, engineers instead decided to push its re-entry capabilities to their limit. The booster operated successfully until it was to make its landing burn over the Gulf of Mexico, but when the engines ignited all telemetry was lost. Apparently that hard re-entry path was finally too much for the booster.

Starship reached orbit and functioned successfully for the first twenty minutes or so. When engineers attempted a test deployment of some dummy Starlink satellites, the payload door would not open properly. The engineers then closed the door and canceled the deployment.

Subsequently leaks inside the spacecraft with its attitude thrusters caused the attitude system to shut down and Starship started to spin in orbit. At that point the engineers cancelled the Raptor engine relight burn. The spacecraft then descended over the Indian Ocean as planned, but in an uncontrolled manner. Mission control then vented its fuel to reduce its weight and explosive condition. It essentially broke up over the ocean, with data was gathered on the thermal system until all telemetry was lost.

Though overall this was a much more successful flight than the previous two, both of which failed just before or as Starship reached orbit, the test flight once again was unable to do any of its objectives in orbit. It did no deployment test, no orbital Raptor engine burn test, and no the re-entry tests of Starship’s thermal protection system. Obviously the engineers gathered a great deal of data during the flight, but far less than hoped for.

SpaceX has a lot of Superheavy and Starship prototypes sitting in the wings. I expect it will attempt its next flight test, the tenth, relatively quickly, by July at the very latest. I also do not expect the FAA to stand in the way. It will once again accept SpaceX’s investigative conclusions instantly and issue a launch license, when SpaceX stays it is ready to launch.

As Starship reached orbit as planned, I am counting this as a successfully launch. The leaders in the 2025 launch race:

64 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 64 to 49.

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SpaceX launches 24 Starlink satellites

10:07 am

SpaceX today successfully placed another 24 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg Space Force base in California.

The first stage completed its thirteenth flight, landing on a drone ship in the Pacific. At least, it appeared so, though there were problems this time with the live stream, which cut off just before touchdown.

The leaders in the 2025 launch race:

63 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 63 to 49.

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Live stream of Elon Musk’s speech to SpaceX employees today

9:16 am

FINAL UPDATE: It appears his talk has been called off, for the present. I suspect he wants a better idea what happened on today’s flight before speaking.

UPDATE: It appears Musk has rescheduled his speech for 6 pm (Central) tonight, after the launch of the ninth test flight of Starship/Superheavy. The embedded live stream below is for this rescheduled broadcast.

I have embedded below the Space Affairs live stream of Elon Musk’s speech that he plans to give to his SpaceX employees today at 10 am (Pacific) today. Musk has entitled it “The road to making life interplanetary.” He has already indicated that he will outline in more detail SpaceX’s program for getting Starship/Superheavy operational, including the likelihood of test flights to Mars in the near future.
» Read more

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Cargo Dragon splashes down and is recovered successfully

2:29 pm

A SpaceX cargo Dragon capsule was recovered successfully earlier today after it splashed down off the coast of California.

The spacecraft carried back to Earth about 6,700 pounds of supplies and scientific experiments designed to take advantage of the space station’s microgravity environment after undocking at 12:05 p.m., May 23, from the zenith port of the space station’s Harmony module.

Some of the scientific hardware and samples Dragon will return to Earth include MISSE-20 (Multipurpose International Space Station Experiment), which exposed various materials to space, including radiation shielding and detection materials, solar sails and reflective coatings, ceramic composites for reentry spacecraft studies, and resins for potential use in heat shields. Samples were retrieved on the exterior of the station and can improve knowledge of how these materials respond to ultraviolet radiation, atomic oxygen, charged particles, thermal cycling, and other factors.

Other cargo returned included a robot hand that tested its grasping and handling capabilities in weightlessness, as well as other experiments.

The capsule itself spent three months in orbit after launching at the end of April.

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SpaceX launches more Starlinks

10:05 pm

Earlier today SpaceX successfully placed another 23 Starlink satellites into orbit (including 13 with cell-to-satellite capability), its Falcon 9 lifting off from Cape Canaveral in Florida.

The first stage completed its 24th flight, landing on a drone ship in the Atlantic.

The leaders in the 2025 launch race:

62 SpaceX
30 China
6 Rocket Lab
6 Russia

SpaceX now leads the rest of the world in successful launches, 62 to 49. The company also has another Starlink launch planned for tomorrow morning. The launch was scrubbed, rescheduled for May 27th.

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Orbital tug startup Impulse Space wins contract with satellite company SES

3:15 pm

The orbital tug startup Impulse Space has won a contract to use its Helios tug to transport the satellites of the long established Luxembourg company SES to their correct orbit after launch.

The companies announced May 22 that they signed a multi-launch agreement that starts with a mission in 2027 where Impulse’s Helios kick stage, placed into low Earth orbit by a medium-class rocket, will send a four-ton SES satellite from LEO to GEO within eight hours. The announcement did not disclose the vehicle that will launch Helios and the satellite, or the specific SES satellite.

The agreement, the companies said, includes an “opportunity” for additional missions to transport SES satellites to GEO or medium Earth orbits.

This the first satellite tug contract for Impulse’s Helios tug, which is the larger of the company’s two tugs, the smaller version dubbed Mira. While Mira has completed an orbital demo mission, Helios has not yet flown, though it has three planned launches beginning in 2026.

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Axiom signs deals with Egypt and the Czech Republic

2:39 pm

Axiom sent out two press releases yesterday touting separate agreements it has reached with two different countries that will either involve research or a future tourist flight to ISS or to its own station.

First the company announced that it has signed a partnership agreement with the Egyptian Space Agency to partner on a range of space-related research. The language describing this work was typically vague, and is so likely because it depends on the time table for the development and launch of Axiom’s station.

Second Axiom announced that the Czech Republic has signed a letter of intent to fly one of its own astronauts on a future Axiom manned flight. Like the Egyptian press release, view specifics were given, likely for the same reasons.

What both deals signal is that there is an international market for the commercial space stations under development and Axiom is aggressively working to garner that business. Its fourth commercial manned mission, set to launch in early June, carries paid government astronauts from Poland, Hungary, and India. The two new announcements add Egypt and the Czech Republic to the company’s international customers.

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