Ancient skywatchers consistently described Theta Eridani as one of the brightest stars visible from Earth, yet modern ...

A violent collision in the main asteroid belt may have sent debris raining across the inner solar system about 800 million ...

Fragments of a star catalog from the second century B.C. have turned up in a manuscript that had been erased and written over centuries later. A new analysis of the religious manuscript shows that the ...

Ancient DNA can be a powerful tool for helping us reconstruct the long-dead past. Most surviving genetic material comes from ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. More than half a ...

What does it mean to be human? For a long time, the answer seemed clear. Our species, Homo sapiens—with our complex thoughts and deep emotions—were the only true humans to ever walk the Earth. Earlier ...