This is our clearest look at two supermassive black holes in orbit around each other. The primary one is 18 billion times the mass of the Sun. The image was created using a space-based antenna that created, in effect, a radio telescope 190,000 km wide.
Incredible. Just 6 years ago we directly imaged a black hole for the first time - now here we are casually snapping pics of binary black holes. ...Okay, maybe not "casually." I'm sure it was a ton of work. But these days, we can just do things.
Learn more here: https://www.utu.fi/en/news/press-release/scientists-capture-an-image-of-two-black-holes-circling-each-other-for-the-first
