Houchin and his colleagues studied dozens of zircon crystals from the Jack Hills in Western Australia. These are the oldest known fragments of Earth rocks. Some date back to the Hadean eon, which ...

New research shows that early land plants started influencing Earth’s climate hundreds of millions of years earlier than ...

Here's a thought experiment that keeps planetary scientists awake at night. Strip every living thing from our planet, every bacterium, every blade of grass, every creature that has ever drawn breath ...

The “gravity hole” in East Antarctica formed at least 70 million years ago after convection in Earth’s mantle. The weak gravity could impact our oceans.