Particles from Earth’s atmosphere may be preserved in the Moon's soil, offering a long-term record of Earth’s atmospheric ...

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

A rare kind of meteorite known as enstatite chondrite resembles Earth's composition roughly 4.5 billion years ago. The key to their counterargument resides in a rare type of space rock called ...

Today, oceans cover about 70% of Earth’s surface. This stark contrast has long driven scientific interest in how water ...

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

The possibility that there is liquid water on an exoplanet’s surface usually flags it as “potentially habitable,” but the reality is that too much water might prevent life from taking hold. “On Earth, ...

New research has found evidence that fresh water on Earth, which is essential for life, appeared about four billion years ago -- five hundred million years earlier than previously thought. New ...

There are multiple theories that explain the origin of life on Earth, but one of the most disputed ones was proposed in 1953 when two scientists named Stanley Miller and Harold Urey conducted an ...

"This is just one of those very rare cases where you propose a hypothesis and actually find it happening." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Earth is so far the only known planet on which life exists—with liquid water and a stable atmosphere. However, the conditions were not conducive to life when it formed. The gas-dust cloud from which ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Water is at the center of one of the enduring questions about how ...