When you look at photographs of Earth from space, the planet looks like a blue marble, with patterns of clouds lying on the surface of the marble. It seems as if Earth's atmosphere is incredibly thin, ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Earth’s core is pretty dynamic. Its spin speeds up and slows down ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

While mid-October has been designated Earth Science Week around the world, every week is Earth Science Week at NASA. To mark its continuous dedication to studies of Earth’s land, sea and air, NASA ...