Astra’s new Rocket 4 launch vehicle will use Ursa Major’s Hadley liquid engine to power its upper stage, the two companies announced Monday.. Astra has been tight-lipped about the new upper ...

WASHINGTON — Rocket propulsion startup Ursa Major announced Nov. 30 it has raised $138 million in Series D and D-1 funding rounds. Investors include Explorer 1 Fund and Eclipse, RTX Ventures ...

Ursa Major plans to next conduct more tests of this motor, including with an extended-range version, in 2025, according to Jablonsky. The system is expected to be qualified in 2026.

RTX’s Raytheon, in partnership with US company Ursa Major, has completed a missile flight test using their advanced long-range solid rocket motor for the US Army. The collaboration's expertise ...

DENVER, June 16, 2025 /PRNewswire/ -- Ursa Major has been awarded a $32.9 million contract to develop and deliver 16 upgraded Hadley H13 engines to Stratolaunch. The multi-year program extends a ...

Ursa Major, a startup that produces rocket motors through 3D printing, received a $12.5 million grant to develop new solid-fuel rocket engines. TechCrunch Desktop Logo TechCrunch Mobile Logo Latest ...

Ursa Major raised $138 million at the close of its Series D and D-1 funding rounds.Explorer 1 Fund and Eclipse led the investor group that includes RTX ‘s (NYSE: RTX) investment arm, BlackRock ...

WASHINGTON (Reuters) -Desperate to address surging demand for solid fuel rocket engines, the Pentagon is close to giving a contract for new motors to the untested, privately held startup Ursa ...