The comet is now racing away from the sun following a close flyby on Jan. 20.

Scientists at Stanford have unveiled the first-ever global map of rare earthquakes that rumble deep within Earth’s mantle rather than its crust. Long debated and notoriously difficult to confirm, ...

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.

A NASA scientist is warning that Earth currently has no reliable way to stop thousands of so-called “city-killing” asteroids that could one day strike the pla ...

New potential climate crisis just dropped.

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

It may become impossible to fix ...

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.

NASA says Earth is about halfway through its lifespan. Scientists explain how solar changes could affect habitability, oceans, and the planet’s future over billions of years ...