The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

Though 2025 won't mark the return of astronauts into deep space as NASA had hoped, launchpads still will be scorching-hot from a procession of robotic spacecraft attempting to land on the moon. How ...

A composition photo of images taken during the lunar occultation on Jan. 4 captures the progression of the moon moving in ...

Alien hunters are buzzing after astronomers discovered 85 potential planets outside our solar system that could harbor life.