Science, Maths & Technology
60 Second Adventures in Astronomy: Event horizons
...is the point of no return? German physicist, Karl Schwarzchild calculated the event horizon of black holes. And it can tell us more about the eventual fate of all the galaxies...Find out more about The Open University's Natural Sciences courses. Transcript Read Stephen Serjeant on the speed of light Discover how you can study physics and astronomy with The Open University...