Water from both volcanic rocks and deep mantle melted Earth's crust 1.6 billion years ago. This long-lasting melting formed ...

A meteorite that struck northwestern Scotland about a billion years ago may have collided 200 million years later than ...

While much remains unknown, it is intriguing that two ancient meteorite impacts, the 3.5-billion-year-old North Pole impact ...

The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from ...

Scientists speculate that asteroids colliding with Earth delivered water—an essential building block of life—but new research ...

How Did Life Start on Earth? Life arose on Earth somewhere between 3.5 billion years and 3.8 billion years ago, yet the circumstances that allowed ... some theories state that certain environments on ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic ... offers new insights into what Earth looked like during this time. Using advanced computer ...