Hubble Telescope found a link between supermassive black holes that power high-speed, radio-signal-emitting jets & the merger history of their host galaxies. Most galaxies with the jets were merging with another galaxy, or to have done so recently.
The constellation of Orion is rich with impressive nebulas. Of the many interesting details that particularly draws the eye is Barnard's Loop, the bright red circular filament arcing down from the middle. The bright orange star on the upper left is Betelg
NGC 4651, the Umbrella Galaxy | NGC 4651 is a spiral galaxy located in the constellation of Coma Berenices that can be seen with amateur telescopes, at a distance not well determined that ranges from 35 million light years to 72 million light years.