Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

I asked my friend Julie Ménard how Earth formed. She’s a planetary scientist at Washington State University. She told me it started with the Big Bang. That was nearly 14 billion years ago. “The Big ...

Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests Earth’s continents didn’t begin growing until hundreds of millions of years ...

Life made the modern Earth as much as the Earth made life, a new book by a philosopher of consciousness argues. That dynamic leaves humans with a unique set of moral questions, Peter Godfrey-Smith of ...

Recent simulations and research have unveiled a fascinating new insight into the history of the solar system’s terrestrial planets. For years, scientists speculated about how the rocky planets—Earth, ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth’s chemical makeup solidified just three million years after the Solar System formed—yet it was a later collision with ...