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

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia ...

Last year, the most violent geomagnetic storm to strike Earth in over two decades did more than disrupt GPS systems and ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside ...

This video takes viewers back to the extraordinary Paleozoic Era, the time when life flourished long before dinosaurs existed ...

The Planetary Defence System of the ESA earlier identified the 40,000th near-Earth asteroid. The current tally since the ESA ...

A lone man walks across an expanse of ice; a mottled tundra; desert badlands. The single human figure becomes a focal point ...

For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so ...

A new study by Caltech’s Konstantin Batygin and his colleague theorizes how super-Earths are formed. Credit: Caltech/R. Hurt ...

To our best of our understanding, the Moon formed from Earth following a colossal impact. A Mars-sized world we nicknamed ...

Asteroid 2025 VP1 is hurtling through space at more than 18,300 miles per hour, the space agency has reported.