event horizon – Astronomy Now

‘Virtual’ telescope captures first direct image of black hole

10 April 2019 Astronomy Now

For the first time, astronomers have captured a direct view of the environment just outside the event horizon of a supermassive black hole.

Do stars fall quietly into black holes?

30 May 2017 Astronomy Now

Astronomers at the University of Texas at Austin and Harvard University have put a basic principle of black holes to the test, showing that matter completely vanishes when pulled in. Their results constitute another successful test for Albert Einstein’s general theory of relativity.

Five-dimensional black hole could ‘break’ general relativity

20 February 2016 Astronomy Now

Researchers from the University of Cambridge and Queen Mary University of London have shown how a bizarrely shaped black hole could cause Einstein’s general theory of relativity, a foundation of modern physics, to break down. However, such an object could only exist in a universe with five or more dimensions.