But don't freak out.
The surprising finding might solve longstanding mysteries about climate and geological phenomena.
Life's origins may lie in outer space, and a lab experiment just confirmed how it could happen.
The Pacific Ocean is shrinking by about an inch every year, and supercomputer simulations predict a new supercontinent called "Amasia" will form.
A new study shows that ingredients for life can form from non-living chemicals on any given beach, and it could help develop new drugs and search for alien life.
More water than all of Earth's oceans is thought to reside deep inside the mantle, and a newly-discovered gem just shed more light on the mystery.
Trevor Rainbolt, the “GeoGuessr guy,” explains how he learned to locate any Google Maps image with astonishing speed and accuracy
The Australian study is the first of its kind to find physical evidence that asteroids shaped the Earth's surface.
June 29 clocked in at 1.59 milliseconds short of 24 hours due to a strange speed-up of Earth's rotation.
Scientists identified more than 10,500 kinds of minerals, nearly double the previous tally, in twin studies that have implications in the search for extraterrestrial life.
Life on a rogue Super-Earth would be difficult, but organisms have been shown to thrive even in very extreme conditions on regular Earth.
The Earth's core and the life-preserving magnetic field it generates are mysterious, and it just got weirder with a fascinating new discovery.