JWST's detection of early galaxies that are far more massive than astronomers had expected could mean we need to rewrite our understanding of the cosmos.
Protect the night sky — join the International Dark-Sky Association for activities during International Dark-Sky Week.
Flashes of radio waves — whose exact sources are still a bit of a mystery — are helping astronomers learn about the hot gas that surrounds the Milky Way.
A long totality passing through Mexico, the U.S., and Canada beckons — and planning ahead will be crucial.
Webb has returned an image of ringed Uranus, currently experiencing the dog days of northern hemisphere summer.
This month’s episode offers an easy-to-follow guide to finding the solar system’s two innermost planets after sunset. And then it takes you on a guided tour of the rest of the key stars and planets that you’ll see on April evenings — a fun and informative way to introduce yourself to the nighttime sky!
Gamma-ray bursts are the most luminous explosions in the universe, and we’ve learned much about these superlative outbursts since their discovery in 1967.
Astronomers are sounding the alarm about low-Earth orbit satellites and space debris as significant contributors to light pollution that will affect even the remotest earthbound stargazer.