Artifacts From the Future

Many critical systems are still being maintained, and the cloud provides some security cover. But experts say that any lapses in protections like patching and monitoring could expose government systems.

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.

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

An observatory detected the first radio signal from the interstellar object 3I/Atlas. Here’s what it means.

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

Solar winds at a million miles an hour and freaky magnetic turbulence are sparking some of the best light shows in centuries.

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.

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

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A Trump administration pilot program aims for three nuclear startups to reach a key milestone by July 4, 2026. Valar Atomics says it’s the first to do so—but it had some help.

The Federal Trade Commission removed several blog posts in recent months about open source and potential risks to consumers from the rapid spread of commercial AI tools.