ArianeGroup has successfully completed a key test campaign of its Prometheus rocket engine, which will initially power the Themis reusable rocket demonstrator.

ArianeGroup Completes Key Prometheus Rocket Engine Tests

European rocket builder ArianeGroup has announced that it completed a series of Prometheus rocket engine test ignitions on 20 June, marking a key milestone...
Sidereus Space Dynamics is nearing completion of its Solaris Test Bench, which will be used for critical testing of its EOS launch system ahead of its first flight in 2026.

Sidereus Space Dynamics Nears Completion of EOS Test Stand

Italian rocket builder Sidereus Space Dynamics has announced that it is nearing completion of its Solaris Test Bench, which will be used for key...
The Exploration Company has declared its Mission Possible flight both a partial success and a partial failure following a successful reentry.

The Exploration Company Declares Mission Possible a “Partial Success”

In-space logistics startup The Exploration Company has declared its Mission Possible flight both a partial success and a partial failure following a successful reentry. As...
Dassault Aviation has signed agreements with ESA and the French Ministry of Defence for the development of its VORTEX spaceplane.

France and ESA Back Development of Dassault’s VORTEX Spaceplane

Dassault Aviation has signed agreements with the French Ministry of the Armed Forces and the European Space Agency to develop a new spaceplane called...
The Exploration Company has unveiled a proposed crew variant of its Nyx spacecraft, which will be capable of carrying a crew of five.

The Exploration Company Unveils Proposed Crew Capsule

During the first day of the Paris Air Show in Le Bourget, The Exploration Company unveiled a crewed version of its Nyx spacecraft. According...
The Exploration Company has confirmed that its Mission Possible recovery vessel has departed from Dutch Harbor in Alaska ahead of the capsule’s launch later this month.

The Exploration Company Launches Mission Possible Recovery Vessel

European space logistics startup The Exploration Company has announced that its recovery vessel, Makushin Bay, departed Dutch Harbor, Alaska, on 10 June. The vessel...
Alpha Impulsion has completed a test firing of an autophage rocket engine. It plans to use the technology to power its Grenat rocket.

Alpha Impulsion Tests Autophage Engine Prototype for Grenat Rocket

Toulouse-based startup Alpha Impulsion has completed a short test firing of an autophage rocket engine. The company plans to use the novel propulsion system...
ESA’s reusable Themis booster demonstrator is now unlikely to fly before 2026, marking another delay for the programme despite recent funding boosts.

First Themis Test Flight Likely to Slip to 2026

Update: On 19 September 2025 ArianeGroup released an updated confirming the start of Themis combined tests on the launch pad at Esrange Space Center....
CNES has launched a call for proposals under its CRYOSTARS initiative to develop and demonstrate in-orbit cryogenic propellant storage and refuelling technologies.

CNES Issues Call for In-Orbit Refuelling Services Demonstration

On 26 May, the French space agency CNES issued a call for proposals for the development of an in-orbit demonstration of the storage and...
ArianeGroup has completed hot-fire tests of a 3D-printed 240N hydrogen peroxide thruster as part of the European Commission's SALTO project.

ArianeGroup Completes Hot-Fire Tests of 3D-Printed Thruster

ArianeGroup has successfully completed a series of hot-fire tests of a 3D-printed, flight-configured 240N hydrogen peroxide thruster. In a 22 May update on LinkedIn, ArianeGroup...
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