Black holes are known for being cosmically ruthless. These objects of compact mass swallow up surrounding material, and not even light can escape their strong gravitational pull.
But what happens when a black hole is inactive, allowing material to float by in space.
Astronomers have recently observed a rather passive black hole, one that does not affect its surroundings in a distant galaxy cluster. Rather than swallowing up material itself, the black hole's inactivity allowed for surrounding star formation to flourish.