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 ...

In the current issue of the journal Science, researchers determine the possible composition of Theia. The impactor’s ...

Researchers have discovered chemical traces of life in rocks older than 3.3 billion years, offering a rare look at Earth’s ...

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

Rare earth elements are actually more abundant than precious metals such as platinum and gold. The challenge, however, is ...

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

Scientists have detected some of the oldest signs of life on Earth using a new method that recognizes chemical fingerprints ...

The planet’s long-standing natural “thermostat” is being outpaced by an feedback loop process involving algae, phosphorus, ...

Scientists have discovered a meteorite older than Earth, offering the earliest clues to how the Solar System formed and how ...

A collision between Earth and a massive Mars-sized protoplanet likely caused the formation of our moon. Now scientists from ...

New simulations reveal interstellar objects don't arrive uniformly, with concentrations from the solar apex and galactic ...