ALIEN life could be hiding away on the vast ocean of a nearby moon. Scientists say there’s a chance that a “small population” ...

Only when the moon, Earth and the sun are perfectly aligned is the moon 100% full. And sometimes — once in a blue moon — the moon is full twice in a month (or four times in a season ...

Over time, it cooled and clumped into a single massive body—the moon. That impact didn’t just create a satellite; it helped define Earth’s structure, tilt, and rotation. Clues about this ...