A decades-old rule about human friendship turns out to be built on such shaky math that it could just as easily be 2 or 520.

Andy Weir is the New York Times bestselling author of The Martian, Artemis, Project Hail Mary, and Cheshire Crossing.

Read the declaration and add your name.

Social media has been a boon to autocratic regimes and their allied movements in democracies.

One in 60 adults Fiji lives with HIV but a recent emergency declaration may help address key issues such as syringe sharing

What can a rare disorder tell us about human behavior?

Cosmic radiation comes from space. Only a small amount reaches the Earth's surface, but exposure is greater for people flying at high altitudes.

A Little Tooth - Your baby grows a tooth, then two,

Physicists have long struggled with their goal of making gravity a quantum force. A radical post-quantum approach might solve that problem – and clear up other cosmic mysteries, too

AI makes finding software exploits casually easy. Security through nobody-bothering has been holding up far more of this industry than we'd like to admit.

I admit it. I took the bait. Charity Majors made an appearance on Gergely Orosz’s show called “Stop being skeptical about AI for development”. I listened to the podcast—I don’t listen to many tech podcasts—and I don’t think she ever said to stop being skeptical. Not directly anyways. Great title, though. Good for engagement. “Stop being skeptical” is a phrase guaranteed to rustle any skeptic’s jimmies. A whole lotta provocation, not a lotta substance. 10/10. No notes.