Self, Not Cooler Self

The interstellar comet 3I/Atlas reached its closest point to the sun. Here's how to follow the rest of its journey away from our solar system.

Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number theory to explain quantum fractals.

“Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect quantum entanglement without destroying it.

Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

The math behind even the simplest ocean waves is notoriously uncooperative. A team of Italian mathematicians has made major advances toward understanding it.

Save almost $20 on Microsoft's first-party headset for Xbox Series S/X.

What sneaky invisible forces enable these instruments to locate buried treasure?

The same pulling force that causes “tears” in a glass of wine also shapes embryos. It’s another example of how genes exploit mechanical forces for growth and development.

By shifting water to a higher elevation, the giant Three Gorges Dam caused the Earth to spin more slowly.

Unusually warm ocean temperatures fueled one of the worst hurricanes on record. New research finds climate change increased the storm’s likelihood.

Which film camera should you get? Which films are the best? We demystify the world of analog photography to help you get started.