Traces of a toxic chemical found on 60,000-year-old arrowheads hint at advanced planning by Palaeolithic hunters.

Five quartz arrowheads found in a South African cave were laced with a slow-acting tumbleweed poison that would have tired ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

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Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

As the war grinds on, sophisticated Russian defenses have pushed Ukraine to develop a frightening new weapon: semiautonomous killing machines.

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Most scientists search for aliens by waiting for signals that may never come. Avi Loeb argues that real evidence requires looking directly at what passes through our cosmic backyard. When unusual ...

Two NATO-nation intelligence services suspect Russia is developing a new anti-satellite weapon to target Elon Musk’s Starlink constellation with destructive orbiting clouds of shrapnel, with the aim ...