Asteroid impacts may have helped make Earth habitable. (Discovery Access/Getty Images) Somehow, on this beautiful blue marble we call Earth, the astonishing phenomenon we call life emerged long ago, ...

From a distance, Biosphere 2 emerges from the cacti and creosote of the Sonoran desert like a gleaming oasis, a colony of glass and bright white structures. Despite being just outside Tucson, Arizona, ...

Deep within the surface of the earth lies a gargantuan amount of carbon in the form of various types of microbial life, which hangs onto life in environments with scarce nutrients and extreme ...

Life thrived on Earth far earlier than previously believed, flourishing under the harsh reign of the Hadean eon. LUCA—the last universal common ancestor—was even designed to fend off ancient viruses.

Biosphere 2 started with eight scientists and a very ambitious experiment. Now, almost 35 years later, it's still being used for cutting-edge research. Scientists continue to use it to study Earth's ...

About 99% of Earth is uninhabitable; in deep underground places with high pressure and temperature, even the toughest bacteria cannot survive. However, there are places where life thrives, from ...

Astronomers have found some pretty wild exoplanets. Some are balls of lava the temperature of hell, one is partially made of diamond, and another may rain molten iron. However, not all exoplanets are ...

"These events can either be a catastrophe or the best thing that has happened to our planet, depending on what point of view you are taking." When you purchase through links on our site, we may earn ...