This strange-looking galaxy seems to be a spiral with a long tidal tail stretching away. It's known as Arp 122,…
Astronomers have found a powerful quasar powered by two supermassive black holes.
In two new studies by international teams of astrophysicists, a wealth of merging black hole pairs have been discovered, which…
The Hubble image above shows a strange galaxy, known as Mrk 273. The odd shape – including the infrared bright…
[/caption] Why does this galaxy appear to be smiling? The answer might be because it has been holding a secret…