SpaceX lofted yet another batch of next-gen spy satellites for the U.S. National Reconnaissance Office (NRO) this morning (April 20). A Falcon 9 rocket lifted off from California's foggy Vandenberg ...

Want the best view of the Lyrid meteor shower? Here's when to look up for the best chance of catching the springtime shooting stars.

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

Don Pettit's birthday "party" brought together Russian recovery teams in Kazakhstan, where it was April 20 (his birthdate).