This artist wanted to speed paint an image of the night sky. After laying down a deep blue background, they splattered white stars on their canvas. Once they laid down the foundation, they added ...

The first dazzling images have been released from the National Science Foundation and Department of Energy’s Vera C. Rubin ...

Scenes of nebulas in the Milky Way, a cluster of galaxies and thousands of new asteroids are a teaser of how the U.S.-funded ...

The night sky isn’t perfectly dark—instead it glows faintly, and the source isn’t exactly local. ... A decently dark site in a rural area has a sky background of about 21 mag/arcsec 2.

To celebrate International Dark Sky Week 2025, we've put together a list of 10 night sky objects visible over the coming days that showcase the majesty of the post-sunset realm.

Of course the sky is dark at night.” But that answer is wrong or, at best, incomplete, and the actual situation wasn’t obvious even to eminent scientists a century or so ago.