When you think of satellites, you probably think of those big finned boxes bouncing cellular signals out in orbit. They're certainly not the kind of thing you would consider a "vehicle," but it is a ...

Astronomers tracking the movements of Comet 41P/Tuttle-Giacobini-Kresak have found that it appears to have slowed its rotation, before the direction of its rotation reversed. Comet ...

A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day).