Sometimes I look at the Moon and realize how little I actually know about it—what it's made of and how it formed. In this ...

The Moon is not, in fact, a giant cosmic wheel of Gouda. In a landmark paper published in Nature, researchers from the French National Center of Scientific Research delivered a hard truth: the Moon is ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon.