A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

A surprisingly well-formed spiral galaxy has been spotted just a billion years after the Big Bang, challenging long-held ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

San Antonio-built satellites on mission to stare at the sun, opened their eyes and tested their thrusters for the first time last week.

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

Astronomers have discovered that the magnetar SGR 0501+4516 is speeding through our galaxy at more than 110,000 mph. This ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

Learn about the solar system from a pair of real space museum curators in sci-fi game Elite Dangerous, as Abbie MacKinnon and ...

Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

"What makes Zhúlóng stand out is just how much it resembles the Milky Way—both in shape, size and stellar mass," said the ...