Cosmic cloud in galactic ‘no-man’s land’

In a first-of-its-kind discovery, US researchers have spotted a cosmic cloud bigger than our own Milky Way, floating alone in a cluster of galaxies tenuously bound together by gravity. This ‘orphan’ cloud has a mass 10 billion times greater than our own Sun and is made up of searing-hot gas with temperatures up to 10 … Continue reading Cosmic cloud in galactic ‘no-man’s land’

Can a black hole fire up a cold heart?

Radio astronomers have detected jets of hot gas blasted out by a black hole 5.9 billion light-years away in the constellation Phoenix. It’s an important result, they suggest, for helping explain the co-evolution of galaxies, gas and black holes in galaxy clusters. The work was led by Takaya Akahori from the National Astronomical Observatory of … Continue reading Can a black hole fire up a cold heart?

Bending the bridge between galaxy clusters

Astronomers have found a bridge of gas extending over three million light-years from two galaxy clusters in the system known as Abell 2384. The clusters collided several hundred million years ago, then passed through each other to arrive in their current configuration. This released a large amount of hot gas that now spans the distance … Continue reading Bending the bridge between galaxy clusters