A 70th Birthday symposium celebrating Professor Stephen Hawking's contributions to fundamental physics and cosmology was held on Sunday 8 January 2012 at Lady Mitchell Hall, Sidgwick Avenue, Cambridge. The symposium featured an afternoon of popular lectures from four distinguished scientists: Lord Rees,
Intel Studios provided live streaming of the event on the day, as well as recording it for posterity. See the Multimedia page to view videos of all four talks.
Tweet about it - Tweet #hawking70 and view pictures from the event.