It will remain a very bright light in the night sky until mid-January. The solar system's biggest planet is as bright and dominant as it gets, but there’s another, brighter planet around that ...

CAPE CANAVERAL, Fla. (AP) — Europe’s Euclid space telescope has detected a rare halo of bright light around a nearby galaxy, astronomers reported Monday. The halo, known as an Einstein ring, encircles ...

lunula and other dinoflagellates manage to avoid bright light. Its answer not only tells us more about this tiny one-celled organism that occasionally makes the sea glow blue—it teaches us about ...