• Question: Can you get light in a black hole?

    Asked by stellastar to Cathal, Daphne, Darren, Jon, Katherine on 18 Mar 2012. This question was also asked by stephthegreat.
    • Photo: Katherine Haxton

      Katherine Haxton answered on 18 Mar 2012:

      Light can’t escape from black holes but light is absorbed by black holes so yes there is probably light in a black hole but unless someone survived the trip in, we’d never be able to measure it.

    • Photo: Jon Benton

      Jon Benton answered on 20 Mar 2012:

      The measurement of light around a black hole is one of the ways people find out if they’re there but as Katherine said to find out if there is any inside is not possible. However Stephen Hawking did find out that black holes do emit a small amount of thermal radiation – so it shows some things escape black holes.