Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.

Enjoy this new video of Mercury, while you treat your ears to an invigorating piece of baroque music. Earlier this month, Mercury took center stage in a recent video montage created from the snapshots ...

Almost everything you could want to know about the closest planet to the Sun, Mercury. Real HD photos and videos taken by the MESSENGER probe. We discuss the orbit, climate, geographical features, and ...