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

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 ...

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, ...

Earth’s continents are not fixed in place. They drift, collide, and break apart over hundreds of millions of years, and new research suggests the next great reunion could create conditions so extreme ...

Scientists suggest that huge reserves of hydrogen inside the Earth may have been key in the formation of water.

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

How Earth got its water has remained an open question for years. Some scientists suspect that much of it came from icy comets that pelted the planet during its youth. But now, new research supports ...

Earth's core contains nine to 45 times more hydrogen than the planet's oceans do, according to a new study that could settle a debate about when and how hydrogen was delivered to Earth.

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

The wonders of life on Earth are endless, but all that may never have come to pass were it not for the planet having the perfect amount of oxygen at birth.