The Giant Impact Hypothesis has long fascinated scientists as the leading explanation for the Moon's formation. Around 4.5 billion years ago, the Earth and a Mars-sized protoplanet called Theia ...

It's the first time Earth's geologic record — information found inside rocks — has been used to create an animation of this kind. When you purchase through links on our site, we may earn an affiliate ...

Our planet has an outer layer made up of several plates, which move relative to one another. While we may take this knowledge for granted, this theory of plate tectonics was only formulated in the ...

Life on Earth may have been destroyed over and over again, NASA says. Space debris crashing into Earth's surface at up to 40,000 miles per hour may have repeatedly wiped out all life during the first ...