Far below the oceans and continents we know, Earth’s deep mantle appears to have stored far more water in its early history than scientists once imagined. New experimental work on high‑pressure ...

Earth’s internal structure continues to reveal details that reshape established scientific explanations about the planet’s formation. One such development concerns the origin and distribution of water ...

At first, scientists thought Earth’s water came from comets. Then, asteroids. Now, they wonder if Earth’s water is homegrown.

A long-standing idea in planetary science is that water-rich meteorites arriving late in Earth’s history could have delivered a major share of Earth’s water. A new study argues that the Moon’s surface ...

A comet named “Devil” has revealed an important clue about the origin of water on Earth. Researchers recently discovered that water on Comet 12P/Pons-Brooks, a rare galactic phenomenon known for its ...

For centuries, people have wondered where Earth’s vast oceans came from. Our planet didn’t form with much water, yet today it’s covered in it. New research using powerful radio telescopes is bringing ...