It's easy to get lost in a clear night sky full of stars ... random star clusters into recognizable shapes like hunters, animals, and mythical creatures. These patterns have helped ancient ...

Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus ...

Frozen fuel from the SpaceX Falcon 9 rocket created a luminous swirl that lasted for several minutes and could be seen from ...