The Voyager probes are each turning off an instrument to avoid ending their 47-year-long missions later this year.

Once, a very long time ago, a massive asteroid hit the Earth and wiped out the dinosaurs. In addition to functionally restarting land-based life on our planet and setting the stage for humans to eventually become the dominant species, that asteroid made us extremely aware of one thing—we are at risk.

Surprising differences in the two so-called Large Low-Velocity Provinces may risk instability in Earth's protective magnetic field.

A new study suggests glaciers carved metals out from the Earth’s surface 700 million years ago, leading to chemical reactions in the oceans that set the stage for early animal evolution

Astronomers believe thousands of large undiscovered asteroids, that could cause regional damage, may be in space.

President Trump wants rare-earth minerals deal to help the US recoup its support to Ukraine. He's said it's about 'raw earth.' What does that mean?