When an archaeologist unearthed Europe’s most important prehistoric hoard in 1963, two dull, rusted pieces didn’t make historical sense. Until scientists revealed their extraterrestrial origins.

For centuries, some questions about the ancient world seemed impossible to answer. Why were the Moai statues placed where ...

Astronomers have uncovered surprising evidence of a thick atmosphere surrounding TOI-561 b, a scorching, fast-orbiting rocky planet once thought too extreme to hold onto any gas. Using NASA’s James ...