Many astronomers believe that AGN activity is responsible for suppressing star formation. However, it appears that maybe the past behaviour of AGN is what’s really to blame.
Active Galactic Nuclei are some of the brightest objects in the Universe. But what is responsible for switching on these supermassive engines?
An accidental discovery of two new galaxies, hiding behind clouds of dust in the furthest reaches of the Universe.
There’s a problem with dark matter, and two possible solutions: bright, luminous supernovae, or dark matter itself.
Most galaxies are either star-forming disks, or red, dead spheroids. But, have galaxy clusters now shown that this divide isn’t quite so clear?