An enigmatic group of fossil organisms has finally been identified—and is changing the story of how plants took root on land ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

A satellite photo from March shows a pair of parallel tornado tracks in Mississippi, leftover from a deadly storm system that ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

From woolly mammoths to giant sloths, via some lesser-known ice-age beasts like 'killer koalas', the visuals in this ...

Funding uncertainties are pushing U.S. space scientists out of the field and putting existing and future space missions on the chopping block.

This new understanding comes from a study by a team led by Rutgers University geodynamicist Yoshinori Miyazaki. The research ...

New research shows that Theia, the planet that collided with Earth and formed the Moon, was a rocky world born closer to the ...

Private data companies are providing everything from drought or pollution risk assessments to locations for untapped mineral ...

Astronomers observed a coronal mass ejection (CME) from a nearby star for the first time The CME was detected using the ...