This is only the third interstellar comet scientists have observed. Its extreme brightening, unusual composition, and intense ...

You can tell a lot about a person by how they behave when no one important is watching. Consistent courtesy in low-stakes ...

I/ATLAS, a giant interstellar object, exhibits strange behavior, alarming scientists and prompting NASA's emergency probe.

An ancient myth about moonlight and madness might trace back to something far more ordinary: our restless, moonlit sleep.

The “Great American Eclipse” in April 2024 gave researchers a once-in-a-lifetime opportunity to study the celestial ...