Some 4.6 billion years ago, Earth was nothing like the gentle blue planet we know today. Frequent and violent celestial ...

By trapping huge amounts of water on land, big dams built by humans have slightly changed how Earth spins and where its poles ...

Scientist have concluded water did not arrive as early during Earth's formation as previously thought, an insight that bears directly on the question of when life originated on the planet. The finding ...

Far below the oceans and continents we know, Earth’s deep mantle appears to have stored far more water in its early history ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. “Dark comets” are much more common than previously thought ...

Université Paris Cité provides funding as a member of The Conversation FR. When Earth first formed, it was too hot to retain ice. This means all the water on our planet must have originated from ...

Researchers have helped overturn the popular theory that water on Earth originated from asteroids bombarding its surface; Scientists have analyzed a meteorite analogous to the early Earth to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers say ...

Scientists speculate that asteroids colliding with Earth delivered water—an essential building block of life—but new research suggests the planet didn't need the delivery. Reading time 3 minutes Water ...

Without hydrogen, a fundamental elemental building-block of water, it would have been impossible for our planet to develop the conditions to support life. The origin of hydrogen, and by extension ...