Answers to some of the most commonly-asked questions surrounding black holes.
Black holes might well be nature’s most mysterious – and misunderstood – phenomena.
While they are often thought of in science fiction and space movies as portals to another dimension, or huge cosmic vacuum cleaners that suck up anything that strays too close, they are now known to expel powerful jets of cosmic matter into space, and can even radiate heat and light energy that can be observed with powerful telescopes.