Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the ...

The solar eruption set Earth's skies ablaze, with vibrant auroras visible across the Northern and Southern Hemispheres.

This week was monumental for NASA’s Polarimeter to Unify the Corona and Heliosphere, or PUNCH mission. The four small satellites sent to low Earth orbit opened their eyes metaphorically for the first ...

Astronomers are applying new image-processing techniques to previously released Hubble observations in honor of the space ...

While solitary black holes should be common, they are hard to find. The one in Sagittarius revealed itself when it passed in front of a dim background star, magnifying the star’s light and slowly ...