Raytheon and growing propulsion firm Ursa Major on Wednesday announced they have conducted successful missile flight tests ...

A Russian cargo vessel, the Ursa Major, exploded and sank in the Mediterranean Sea off the coast of Spain on December 23, after a catastrophic explosion in its engine room. The explosion caused the ...

Fourteen crewmembers of the ship, the Ursa Major, had to be rescued from a lifeboat and transferred to Spain, according to Spain's maritime rescue agency. None of the fourteen crewmembers were ...

Speed of development has been an important aspect of the Army's missile project tested by Tucson-based Raytheon.

Ursa Major Technologies Inc. and Raytheon’s Tucson, Arizona-based rocket unit have completed a successful missile flight test for the U.S. Army, using the companies’ advanced long-range solid rocket ...