Shutterstock The Grand Canyon State is a Certified Stargazing Paradise Arizona has some of the darkest, clearest skies in the ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

Exoplanets have captured the imagination of public and scientists alike and, as the search continues for more, researchers ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

A trio of astronomers from the University of Tokyo and Niigata University have found what they describe as "peculiar embedded ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Milky Way stars that are high and low in metallicity have been mapped by the ESA Gaia mission. [Gaia spacecraft: Mapping the ...

Astronomers have discovered a giant radio galaxy with plasma jets stretching an incredible 3.3 million light-years—32 times ...

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

Recent studies challenge the long-held belief that the Milky Way is a standard model for understanding galaxy formation, ...