How do we know there's a black hole in every galaxy centre? | History of Supermassive Black Holes
16:10
The Final Parsec Problem: do SUPERMASSIVE black holes ever MERGE?
16:38
How do we know the Milky Way is a spiral? | The History of the Milky Way
26:23
The Dark Energy Delusion | Claudia de Rham Public Lecture
11:41
The Biggest Possible Black Hole - Sixty Symbols
19:54
Was Einstein "wrong"? | Testing new theories of gravity
35:32
Supermassive Black Holes : Rethinking Their Origin
22:43
Spinning a black hole as fast as possible
26:30