Image of Andromeda Galaxy (M31) taken with a 12.5-inch Ritchey-Chrétien telescope by amateur astronomer Robert Gendler - via 21Space
A team of astronomers using the Hubble Space Telescope found an unambiguous link between the presence of supermassive black holes that power high-speed, radio-signal-emitting jets and the merger history of their host galaxies. Almost all galaxies with the jets were found to be merging with another galaxy, or to have done so recently
Illuminated Earth as seen from space...
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224
Photo: Source : +European Space Agency, ESA The Andromeda Galaxy . also known as Messier 31 , M 31 , or NGC 224 , is spiral galaxy approximately , 780 kiloparsecs , 2.5 , million light years , from Earth .