An atom's cloud of electrons makes it difficult to determine an exact boundary for "touching," Baird said. Instead, it is ...

A silver amulet found in a 1,800-year-old grave in Germany speaks to the importance — and the risk — of being Christian in ...

Composite images reveal how the sun's corona changed from one total solar eclipse to another in 2023 and 2024, just as solar ...

If you missed the peak of the Geminid meteor shower earlier this month, don't worry — there's still another chance to catch a ...

Two cannons found at a site dating to 1541 in Arizona may be the oldest surviving firearms in the U.S. They were abandoned by the Spanish after they were defeated in battle.

Given an infinite amount of time, an infinite number of monkeys randomly prodding keys on a typewriter could, in theory, ...

Marine otters live on rocky coasts with extreme swells and strong winds, with their dens built into crevices and caves.

Alien life might look unlike anything we've ever seen on Earth. Trying to find evidence of these unknown organisms will ...

Trillions of tons of hydrogen gas are likely buried in rocks and reservoirs beneath Earth's surface, but researchers aren't ...

The Marble Caves sit on the shores of a turquoise glacial lake in southern Chile. Light bounces off the water onto the walls, ...

Researchers have detected a giant tail of gas leaking from an exoplanet near Earth. The giant structure, which is up to ...