Researchers used a pair of powerful supercomputers to simulate the potential trajectories of 1 million satellites in a ...

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

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, ...

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

The Earth is apparently halfway through its lifecycle, and this was revealed using an unlikely neighbour in space – and it ...

Earth’s core has often been described as just a giant ball of iron and nickel. Now, a new study argues that it is also a major storage place for hydrogen, possibly equivalent to dozens of oceans’ ...

Alexander Venner picked his way by hand through the data collected by a now-retired NASA telescope called Kepler, which examined the sky for exoplanets ...

Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.