Beware of the black holes

At a lecture for senior students Bengt Gustafsson, Professor emeritus in theoretical astrophysics, gives some useful information regarding black holes. “If you see one – don’t get close to it.  You will be lost in both time and space and it will be quite dark.”  ;-)

In the background - Karl Schwarzschild - a German physicist and astronomer who provided the first exact solution to the Einstein field equations of general relativity.