Earth is often described as a water world, but how that water arrived has never been settled. For years, the focus has rested ...

A new NASA study using Apollo lunar soil samples challenges a long-held theory. It suggests meteorites were not the primary ...

For the Moon itself, the story is different. The Moon has far less water than Earth, but for such a dry world it’s important.

This record-breaking rock had losing bidders seeing red. At one of Sotheby’s Geek Week events, this Martian meteorite smashed through bidding expectations, which were between $2M to $4M. This ...