A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during ...

Key climate tipping points may be closer than expected, raising the risk of accelerating warming, sea-level rise, and ...

Geoscientists say Earth will be home to one massive supercontinent about 200 million years from now; there are four prominent versions of this mega-continent. The climate might be surprisingly balmy ...

How Earth got its water has remained an open question for years. Some scientists suspect that much of it came from icy comets that pelted the planet during its youth. But now, new research supports ...

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure ...

Uncertainty in climate models could mean Earth systems are perilously close to their tipping points, scientists warn.

Could we prevent in-orbit crashes in the future by using advanced computer models?

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...