Author: Robert Zimmerman

May 13, 2025 Quick space links

2:34 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.

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Gilmour finally gets launch license from Australian bureaucrats

11:37 am

Australian commercial spaceports
Australia’s commercial spaceports. Click for original map.

After several years of delays, the Australian rocket startup Gilmour Space today announced that it has finally been issued a launch license from the Australian Space Agency.

According to the company, “pending weather & final system checks, we’re on target for our launch window to open NET May 15.”

The launch will take place at Gilmour’s own Bowen spaceport on the east coast of Australia. The Eris rocket has three stages and is designed to launch smallsats similar to Rocket Lab’s Electron rocket.

It is amazing this company hasn’t gone bankrupt waiting for this launch license. It applied in 2022, hoping to launch that year. Three years later it finally gets the okay. The amount of cash it had to burn unnecessarily in those years would generally destroy most startups.

Whether the red tape in Australia will clear up in the future is decidedly unknown, especially with the election victory this month of the leftist party.

Hat tip BtB’s stringer Jay.

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China launches communications test satellite

9:53 am

China early this morning successfully launched another communications test satellite. its Long March 3C rocket lifting off from its Xichang spaceport in southwest China.

China’s state-run press as always released little information. All we really know is that this launch has been part of a series of recent launches putting similar communications test satellites into orbit. We also don’t know where the rocket’s lower stages, which use very toxic hypergolic fuels, crashed inside China.

The leaders in the 2025 launch race:

57 SpaceX
25 China
5 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 57 to 42.

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Pentagon raises the list of companies that can bid on space infrastructure projects to almost two dozen

9:48 am

Capitalism in space: In its effort to rely on the private sector for its space needs, the Pentagon yesterday added fourteen space companies to its list of eight companies that can bid on space infrastructure projects.

The latest round of companies added to the project includes Capella Space, EdgeCortix, Eutelsat America Corp. OneWeb Technologies, Fairwinds Technologies and AST Space Mobile, Illumina Computing Group, Lockheed Martin Space, MapLarge, SES Space & Defense, Skycorp, SkyFi, Ursa Space, and Viasat.

They join eight other firms that were brought on board in 2022: Aalyria Technologies, Amazon Web Services, Amazon Kuiper, Anduril, Astranis, ATLAS Space Operations, Enveil, Google, Palantir, Planet Labs, Microsoft, and SpiderOak.

Essentially, the Pentagon wants these companies to compete for contracts to build various space-based communications assets, coming up with the designs and spacecraft themselves. In this round the specific goal is to develop satellite systems that can transmit data and communications to military units anywhere on the globe.

It is puzzling however that SpaceX is not included in this list, even though all its competitors are. I suspect this is because SpaceX’s Starshield version of Starlink is covered under different military programs and contracts. Or it could be that politics forced the military to exclude it in this case. Or there could be some other reason that defies logic. Understanding the byzantine workings of the government’s bureaucracy is often impossible.

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Lockheed Martin invests in new solid-fueled rocket startup

9:36 am

In its most recent fund-raising round, the solid-fueled rocket startup X-Bow (pronounced “crossbow”) raised $35 million in private investment capital, with Lockheed Martin being the largest investor.

Lockheed Martin’s involvement marks a deepening interest in securing alternative sources for solid rocket motors, components that are increasingly vital to a wide range of U.S. missile systems, including hypersonic weapons. The investment comes three years after Lockheed’s attempt to acquire Aerojet Rocketdyne was blocked by the Federal Trade Commission on antitrust grounds. Aerojet was later bought by L3Harris Technologies, leaving Lockheed without a vertically integrated propulsion supplier.

Nor is this the first time that Lockheed Martin has invested in a rocket startup. It had previously invested in ABL and Orbex, both liquid-fueled but struggling or failing, as well as the much more successful Rocket Lab. It has also invested in the orbital tug startup Orbit Fab, the orbital capsule company Inversion Space, and the satellite startup Terran Orbital, which it ended up buying entirely.

All in all, Lockheed Martin appears determined to join the new wave of space startups, if not by doing it itself but by buying into the successes of new startups. So far this has not entirely paid off, but it does appear to be, in the long term, a viable strategy to keep Lockheed Martin competitive and in the game.

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NASA engineers end second super pressure balloon flight early

9:23 am

Flight path of second super pressure balloon test
Flight path of second super pressure balloon test

Due to an issue with its power system, NASA engineers today decided to end its second super pressure balloon flight this year after only nine days, when the balloon crossed over South America and thus allowing them to recover it safely.

Although the balloon performed well and the mission successfully met its minimum requirements toward qualification of the balloon system, an issue with the power system aboard the balloon gondola prompted the team to terminate the mission early as a precaution. The team had been monitoring a power failure in one of the redundant charging systems since May 8.  “Despite the loss of one of the redundant charging systems, the remaining power system was performing very well and still able to sustain the batteries and electrical equipment over the course of the mission,” said Hamilton. “However, to be cautious, the team opted to end the flight early to get the equipment back, so we can do a full failure analysis.” 

After identifying a safe area and coordinating with Argentinian officials, the flight was safely terminated. Recovery of the balloon and payload is in progress. 

The first flight flew for seventeen days, circling the globe at the high southern latitudes. In that case issues with the balloon caused the flight to be terminated while it was over the ocean, preventing recovery. As the goal with both flights was to fly for 100 days, neither came close to that target.

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NASA releases thermal image of Mars taken by Europa Clipper

9:11 am

Mars as seen by Europa Clipper in thermal
Click for original image.

NASA yesterday released a thermal image of Mars taken by during Europa Clipper’s March 1, 2025 fly-by of the red planet on its way to Jupiter. From the caption:

This picture of Mars is a composite of several images captured by Europa Clipper’s thermal imager on March 1. Bright regions are relatively warm, with temperatures of about 32 degrees Fahrenheit (0 degrees Celsius). Darker areas are colder. The darkest region at the top is the northern polar cap and is about minus 190 F (minus 125 C).

The press release doesn’t identify the bullseye feature on the left. I think the bright area inside the bullseye might be the shield volcano Syrtis Major, with the dark area to the right Isidis Basin, which means this is also a snapshot of Perseverance, sitting on the basin’s western perimeter. The dark feature on the right edge of the image might be the giant volcano Elysium Mons. These however are total guesses and likely wrong.

The mission team used this fly-by to test the spacecraft’s science instruments, and have so far found all to be working as expected.

Europa Clipper will do one more fly-by of Earth in December 2026, allowing it to reach Jupiter in April 2030.

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SpaceX launches twice last night, with one launch using first stage for record 28th time

8:41 am

SpaceX last night successfully placed more than fifty Starlink satellites into orbit, launching Falcon 9 rockets from opposite coasts with one using first stage for record 28th time.

First the company placed 26 Starlink satellites into orbit from Vandenberg Space Force Base in California, the first stage completing its sixth flight by landing softly on a drone ship in the Pacific.

Four hours later the company placed 28 Starlink satellites into orbit from the Kennedy Space Center in Florida, the first stage completing its 28th flight by landing safely on a drone ship in the Atlantic. Not only did this set a new record for reflights by a Falcon 9 first stage, it matched the number of flights of the space shuttle Columbia (the last of which ended in its destruction). Columbia took 22 years to complete those flights. This booster took less than four years to do the same. And it is still viable and has the chance (along with several other Falcon 9 first stages) of eventually beating the flight records of the shuttles Discover (39 flights) and Atlantis (33).

The leaders in the 2025 launch race:

57 SpaceX
24 China
5 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 57 to 41.

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May 12, 2025 Quick space links

3:35 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.

0 comments

Poland completes suborbital test launch

8:36 am

A consortium of Polish private and public institutions announced on May 9, 2025 that it had successfully completed a suborbital rocket launch on April 15, 2025, testing the first stage of a planned three-stage suborbital rocket.

According to a separate release from ZPS Gamrat [one of the consortium partners], the rocket exceeded an altitude of 10 kilometres before being destroyed by its onboard flight termination system, as planned. The goal of the test was to validate the rocket’s navigation and control systems, engine performance under flight conditions, flight termination system, telemetry systems, and aerodynamic characteristics. According to the WITU release, teams are currently analysing the data collected during the flight.

The next flight will add the second stage, and is targeting a launch this summer. If successful, the third launch using all three stages will take place before the end of the year.

This solid-fueled rocket is essentially a re-invention of the Scout suborbital rockets that NASA (and its predecessor the N.A.C.A) tested and flew many times out of Wallops Island in the 1950s and 1960s. Those test flights tested many basic components used in orbital rockets today, while also doing short suborbital science research each flight. It appears Poland aims to do the same thing now.

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China launches classified satellites for military remote sensing

10:27 pm

China today successfully launched a set of classified satellites (number classified) for doing military remote sensing, its Long March 6 rocket lifting off from its Taiyuan spaceport in north China.

As usual, China’s state-run press released little information about the satellites, the launch, or where the rocket’s core stage and four strap-on boosters crashed inside China. The report did state the Long March 6 was “modified,” but did not detail how. One wonders if China has done something to improve the rocket’s upper stage, which reaches orbit and has had a tendency to break up shortly thereafter, creating large clouds of space junk.

The leaders in the 2025 launch race:

55 SpaceX
24 China
5 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 55 to 41.

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