It seems too good to be true, but UK-based Pulsar Fusion has revealed its new Sunbird self-contained nuclear rocket tug that ...

Ursa Major has been contracted to further refine its liquid rocket engine known as Draper for hypersonic technology ...

US prioritizes hypersonic weapons. The AFRL contract covers a flight demonstration as well as the integration of Ursa Major’s Draper engine into a test vehicle. “Under this co ...

WASHINGTON — Rocket propulsion startup Ursa Major Technologies has secured a $28.5 million contract from the U.S. Air Force ...

"A return to flight is based on the FAA determining that any system, process, or procedure related to the mishap does not affect public safety." ...

Another update from Firefly early Tuesday afternoon confirmed the launch failed. The company said the rocket "experienced a ...

Far from the most dangerous point in the launch, the Firefly rocket's separation caused it to miss its orbital insertion.

When a $500 million rocket bursts into flames, you’d expect a crazy technical glitch. The Starship explosion during Flight 7 ...

PROMONTORY, Box Elder County — No solid rocket motors were lost or damaged in an explosion Wednesday in remote Promontory, a company spokesperson for Northrop Grumman told KSL.com Friday.

Both crew members died after an engine exploded and fell from the Douglas C-54, leading to the crash. A final report on the fiery crash of a commercial cargo plane near Fairbanks last year that ...

An explosion at the Promontory ... Northrop Grumman's Utah facility manufactures and tests solid rocket engines, like those used to launch NASA's Space Launch System (SLS) rocket for the Artemis ...

A rendering of a Sunbird rocket detaching from its station to dock ... of hydrogen. The Sunbird engines, however, would replace tritium with helium-3, a rare helium isotope. The reaction between ...