The Big Dipper (Ursa Major or Big Bear in Latin) is the most recognized constellation in the Northern Hemisphere.

The Ursa Major, which sank on Monday, was carrying vital equipment for Moscow's newest nuclear-powered icebreaker.

RTX and Colorado-based propulsion firm Ursa Major conducted the test at Naval Air Weapons Station China Lake in California. Ursa Major’s Lynx 3D printing technology was used to manufacture the ...

A unique and difficult-to-replace sealift ship operated by the Kremlin’s military logistics company sank in the Mediterranean Sea near Spain on Christmas Eve. The loss of the 13,000-ton M/V Ursa Major ...

A Russian cargo ship, Ursa Major, has tragically sunk in the Mediterranean Sea after a catastrophic explosion in its engine ...

A Russian cargo vessel, the Ursa Major, exploded and sank in the Mediterranean Sea off the coast of Spain on December 23, ...

Stargazers in the northern hemisphere are in for an out-of-this-world holiday light show this weekend. The Ursids, the final ...

The Sun reaches its southernmost point, the Ursid meteor shower peaks, and the Christmas Tree Cluster glitters in the sky ...

Raytheon and propulsion company Ursa Major have announced the completion of a missile flight test for their long-range solid rocket motor. Developed for the U.S. Army, the rocket motor demonstrates a ...

Raytheon’s Tucson-based missile manufacturing operation this week announced a successful missile test for an advanced long-range solid rocket motor it is developing together with Colorado ...

WASHINGTON — Rocket propulsion startup Ursa Major announced Dec. 18 that one of its solid rocket motors completed a successful flight test on a Raytheon-built missile for the U.S. Army.