Earth was once covered by a global magma ocean, which later cooled and crystallised – now traces of this primordial event ...

A fresh look at a nearby planet has scientists rethinking its potential, with its biggest secret still out of reach.

The star’s looming death will dramatically reshape the inner solar system, engulfing Mercury and Venus in a fiery sphere. The ...

The combined impact of a strong El Niño and climate change has officially pushed ocean surface temperatures past the record ...

We might not have to go scorched Earth after all. Contrary to popular belief, the Earth might actually weather the fiery death of the sun that’s expected to engulf our neighbors, per a relieving study ...

Using complex climate models, researchers have pinned down the point at which life will no longer be able to survive on Earth ...

Ancient asteroid impacts may have done more than reshape Earth's surface—they could have helped spark life itself. New computer models show the collisions created enormous underground hydrothermal ...

As the sun expands over the coming billions of years, Earth will become inhospitable to any life more complex than a microbe ...

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

When you think about a large asteroid impact, you might imagine a moment of devastation: a violent collision, a blast of heat ...

Insects may be even more dominant on Earth than scientists thought. A new estimate suggests the planet could hold 14 million ...