If executed at the scale, Musk's orbital data center plan could have devastating effects on the environment and the ...

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

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

Gravity seems constant but it turns out, Earth is weirder than that. Gravity actually wobbles a bit across the planet. And ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

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

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, ...

Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have ...

SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might ...

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

Scientists discovered plate anomalies in Earth's mantle using seismic wave analysis. These mysterious structures challenge tectonic theories.

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their ...