Researchers studying the deep biosphere, Earth’s largest ecosystem, have found evidence that life thriving miles below the ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Alexander Venner picked his way by hand through the data collected by a now-retired NASA telescope called Kepler, which ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

Precious metals may be escaping from the planet’s core. This hotly debated subject could help us understand Earth’s evolution and determine whether life exists elsewhere in the Universe ...

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has mostly been here since the beginning ...

NASA has selected two Earth science missions for development, one focused on studying the atmosphere and the other on terrestrial ecosystems and ice.

According to these calculations, Earth's total lifespan will be about 9.5 billion years.

The science is clear: the patient, our home planet earth, is in critical condition. Patrick Pleul/picture alliance—Getty Images The results of the planet’s first annual physical—a complete health ...