Stephen Hawking sets three ordinary people a series of fun physical and mental challenges to show them how to think like a genius. Can they measure the earth, the solar system and even the universe and find out where we really are?

Originally released by Public Broadcasting Service (U.S.), 2016. Streaming video file encoded with permission for digital streaming by Infobase on February 13, 2017.

Where Are We?(1:49) -- Earth Curvature Experiment (3:57) -- Eratosthenes (3:29) -- A New Measurement (3:55) -- Two Measurements (1:57) -- Our Nearest Neighbor Challenge (2:30) -- Our Nearest Neighbor Results (2:11) -- The Sun Challenge (3:12) -- The Sun Challenge Results (2:40) -- Solar Scale (2:08) -- Spinning Earth Challenge (2:55) -- A Better Look (1:49) -- Spinning EarthResults (3:47) -- Relation to the Stars (2:05) -- Solar Scale (2:47) -- The Nearest Star (3:18) -- Our Galaxy (3:57) -- Where We Are (4:11) -- Credits: Genius By Stephen Hawking: Where Are We? (24:44).