• Question: are black holes real

    Asked by 845sptm43 to Christine on 2 Mar 2018.
    • Photo: Christine Simpson

      Christine Simpson answered on 2 Mar 2018:

      Definitely- we’ve been able to see a lot of them because they twist the light coming from everything behind them by a huge amount, so we definitely know they’re there.

      In 2015 we also got to see them using gravitational waves at the LIGO experiment when two black holes collided to make a really, really big black hole, and we’ve observed a bunch more since then.