NASA's SPHEREx observatory undergoes testing at BAE Systems in Boulder, Colorado, in August 2024. Launching no earlier than Feb. 27 ...

In NASA's latest survey, experts detected black holes hidden behind thick clouds of gas and dust and others that are not.

HWO will be the first space telescope built to find potentially habitable planets and analyze their atmospheres for signs of ...

Astronomers discovered ultra-faint dwarf galaxies, frozen for 13 billion years, offering rare insights into early cosmic ...

This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two ...

Enrico Chesta, Véronique Ferlet-Cavrois and Markus Brugger highlight seven ways CERN and ESA are working together to further ...

Giant radio galaxies are cosmic megastructures that can span millions of light-years, making them some of the largest-known ...

The University of California San Diego is positioning itself as a leader in astronomical research as its new Department of ...

Quasars are the most luminous type of active galaxy. They emit light across the electromagnetic spectrum, produce powerful ...

Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." ...

Jets blasting from supermassive black holes cause gas to cool and fall toward that cosmic titan in a cosmic feeding process.