The findings are a big clue as to why the far and near hemispheres of the moon look so different.

Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.

In 2006, NASA’s Stardust mission accomplished something no other spacecraft had done before: it returned solid material from ...

Green by choice! Follow these 26 easy, effective tips to reduce your footprint and become a more conscious, responsible ...

Interstellar objects are so uncommon as to be subject to observation only once every few years and so far we learn something ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

Each of these books can, in its own way, teach readers how to think about Earth's history, and how to apply lessons from the past to our future.

When large satellites crash to Earth, we have so far been largely blind to their trajectory. This could change thanks to ...