Scientists discovered a 480-million-year-old phosphatic sponge in South China, making it the oldest known stromatoporoid and ...

A reanalysis of paleomagnetic poles provides tighter bounds on the style and rate of motions of our whole planet with respect ...

A team of researchers at the University of Oxford have uncovered crucial evidence for the origin of water on Earth. Using a ...

Of the heavy metals spewed by dying stars, the astronomers were particularly interested in iron-60. That’s because iron-60 is ...

In The Decline and Fall of the Human Empire, science writer Henry Gee considers how long we’ve got, and how we can extend our ...

Glaciers that came as far south as New York and Wisconsin, as some did 18,000 years ago, were not the ... it's been about 600 million years since the earth has had this sort of problem.

When colossal asteroids rock Earth, it's not all ... Impacts by objects around 460 feet (140 meters wide) in diameter occur every 10,000 to 20,000 years. A "dinosaur-killing" impact from a rock ...

It's a very special kind of eruption, thought to be quite violent, that occurred a long time ago in the Earth's history ... hundreds of million of years, and then start growing again.

had been used as evidence to support the theory that plate tectonics started nearly as soon as Earth had solid ground — roughly 4 billion years ago. "That's probably a flawed argument now ...

Water is at the center of one of the enduring questions about how life first formed on Earthr. More specifically, where did ...