The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation. Many galaxy clusters have a region of hot gas in the intracluster medium (ICM) ...

Astrophysicists have observed our central supermassive black hole. They found the accretion disk is constantly emitting flares without periods of rest. Shorter, faint flares and longer, bright flares ...

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful ...

A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos ...

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the ...

New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.

Just as modern telescopes reveal the hidden structure of nebulae and star clusters, understanding the physics behind twilight ...

Using the Hubble Space Telescope (HST), astronomers have observed a supermassive galactic open cluster designated Westerlund ...

A new study led by University College London (UCL) researchers suggests that unpredictable stars could be distorting our ...

This image of the galaxy cluster Abell 2744 is from the Frontier Fields project, using natural gravitational lenses and ...