It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid ...

Step aside, Santa Monica. It seems that Mars once had beaches that would give the Californian coast a run for its money.

Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...

A team of astrophysicists, geoscientists, chemists and life scientists affiliated with a host of institutions in Japan has found evidence that billions of years ago, the Earth's oceans were green.

Researchers found the world’s oldest impact crater in Western Australia. The crater was created by a massive meteorite impact ...

The discovery, reported in the journal Proceedings of the National Academy of Science, adds weight to the theory that up to a third of Mars was once covered by oceans 3.6 billion years ago.

This isn't the first time that Hubble has peered into a dark part of space only to come away with a photo revealing the light emitted by thousands of galaxies billions of years ago. A ground-based ...