A star map (or star chart) is basically a cheat sheet ... bringing different constellations into view. Some, like Ursa Major and Cassiopeia, are visible all year. Others come and go with the ...

DENVER, March 13, 2025 /PRNewswire/ -- Ursa Major has been awarded a contract for delivery of fully integrated GEO propulsion systems for a customer focused on critical space missions. The multi ...