The First Rogue Black Hole has Been Discovered, and it's Only 5,000 Light-Years Away

Microlensing strikes again. Astronomers have been using the technique to detect everything from rogue planets to the most distant star ever seen. Now, astronomers have officially found another elusive object that has long been theorized and that we first reported on back in 2009 but has never directly detected – a rogue black hole. That …