Episode 4: A journey back to 1809 features astronomer William Herschel's observations on the effects of light on time and gravity. Also: Tyson travels to the event horizon of a black hole.
Julian Ovenden as Michael Faraday
Patrick Stewart as William Herschel
A documentary series that explores how we discovered the laws of nature and found our coordinates in space and time.
Presented by astrophysicist Neil deGrasse Tyson. Executive producers include Family Guy creator Seth McFarlane and Carl Sagan's widow, Ann Druyan.