Where did the moon's magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft ...

Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to ...

Our satellite is a little off-balance. GRAIL data show a mass asymmetry of a few percent between its near and far sides.

Some of the best Apple Watch Face apps on the App Store right this minute. Every different sort of watch face you can imagine ...