A pile of ancient arrowheads from southern Africa still holds traces of toxic plant residue, even after some 60,000 years.

Here’s what you’ll learn when you read this story: For nearly a century, scientists have been searching for direct evidence of dark matter—one of the key missing pieces of our theoretical ...

The James Webb Space Telescope (JWST) has found compelling evidence for “monster stars” — gigantic, primordial stars that existed in the early universe. For almost 20 years, one of the universe’s ...