One of the Colorado manufacturer's Hadley rocket engines propelled the Stratolaunch Talon-A test vehicle to speeds beyond Mach 5 in May, the first US-made aircraft to hit that mark since the 1960s.

About Ursa Major Ursa Major is an aerospace and defense company delivering flight-proven capabilities for hypersonics, solid rocket motors, in-space propulsion, and launch.

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 ...

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.

U.S.-based aerospace company Ursa Major has been awarded a $32.9 million contract to upgrade the rocket engines on Stratolaunch’s Talon-A Hypersonic test vehicle. Under the contract, the company will ...

Most people have never seen the Little Dipper, because most of its stars are too dim to be seen through light-polluted skies.

Mizar, a star in the Big Dipper's handle, has a tiny companion. This star, Alcor, was known to the ancients. The pair was popularly known as the "Horse and Rider." ...

Getting your Trinity Audio player ready... NATCHEZ – Students wrapped up a week of exploring the wonders of space and science ...

WASHINGTON — Rocket engine maker Ursa Major landed a $32.9 million deal to supply 16 advanced propulsion systems to Stratolaunch for hypersonic flight tests.