Jürgen Renn: Are black holes real?
Cliff Will talks about the strange properties of black holes
Cliff Will on what happens around black holes, where black holes come from and where they might go
Kip Thorne talks about twisted space-time, black holes, gravitational waves and many other things
Jürgen Renn: talks about who first imagined black holes and shows us where Einstein lived and worked
Reinhard Genzel tells us how the huge black hole in the centre of our Milky Way was discovered
Günther Hasinger tells us about the different kinds of black holes and where you can find them