Water is ubiquitous on Earth—about 70% of Earth's surface is covered by the stuff. Water is in the air, on the surface and inside rocks. Geologic evidence suggests water has been stable on Earth ...
Water was there. We know it was. But piecing together when and how, and where it went, is a little trickier to figure out. But we just got a big clue: a meteorite that was ejected from Mars 11 million ...
Its unusual appearance tipped off its finder, and it soon passed into the hands of a meteorite dealer in Morocco. An American collector ended up buying the stone, but pieces of it have since been ...
Here’s how it works. The Taurid meteor shower, consisting of the Southern Taurids and Northern Taurids, is a highlight for stargazers each fall. This year, the Southern Taurids peaked on Nov.