Science, Maths & Technology
Astronomers think they’ve just spotted an ‘invisible’ black hole for the first time
...class of isolated black holes. Einstein’s General Theory of Relativity predicted that massive objects will bend light as it travels past them. That means that any light passing very close to an invisible black hole – but not close enough to end up inside it – will be bent in a similar way to light passing through a lens. This is called gravitational lensing, and can...