GENIUS BY STEPHEN HAWKING premieres Wednesdays, May 18-June 1, 2016, 9:00-11:00 p.m. ET on PBS.
Follow the team’s truly mind-bending challenge: Can they work out why they exist at all?
Watch this full episode (for limited time): http://to.pbs.org/1UtjdaP
(Thanks to Janet Cornwell for this.)