22. Black holes I

MIT General Relativity, Spring 2020 Instructor: Scott Hughes View the complete course: YouTube Playlist: We reconcile the odd behavior of the different views of infall into the spherically symmetrically spacetime by studying the motion of light.  We find that these spacetimes contain a surface beyond which communication is not possible — an 'event horizon' — and therefore constitute black holes.  This class focuses on the non-rotating Schwarzschild black hole; more general forms are known (the rotating Kerr solution being particularly important).  Unfortunately, plans for more detailed discussion were disrupted by the COVID-19 pandemic. License: Creative Commons BY-NC-SA More information at More courses at Support OCW at We encourage constructive comments and discussion on OCW’s YouTube