Cosmos: A Spacetime Odyssey The Clean Room (Season 1, Episode 7)
TV-PG
TV Episode | 43 min | Documentary

Cosmos: A Spacetime Odyssey

The Clean Room (Season 1, Episode 7)

TV-PG

TV Episode | 43 min | Documentary

To determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery - calculating Earth's age of 4.5 billion years. But Patterson's groundbreaking discoveries were ...See moreTo determine the true age of the Earth, geochemist Clair Patterson developed the uranium-lead dating method to make an unprecedented discovery - calculating Earth's age of 4.5 billion years. But Patterson's groundbreaking discoveries were just beginning. Patterson made it his mission to draw public attention to the detrimental effects of lead in the environment and dedicated his career to fighting against the petroleum and chemical industry, eventually achieving public health's biggest victory of the 20th century. Written by Anonymous See less

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Cast	+ Add Cast
11 cast members

Name	Known for
Neil deGrasse Tyson Self - Host Self - Host See fewer	Batman v Superman: Dawn of Justice (2016)
Larry Cedar Actor (voice) Actor (voice) See fewer	Deadwood (2004)
Christopher Emerson Actor (voice) Actor (voice) See fewer	What Women Want (2000)
Stoney Emshwiller Actor (voice) Actor (voice) See fewer	Frailty (2001)
Keythe Farley Actor (voice) Actor (voice) See fewer	Mass Effect 2 (2010)
Richard Gere Clair Patterson (voice) Clair Patterson (voice) See fewer	Chicago (2002)
Nick Jameson Actor (voice) Actor (voice) See fewer	Frozen (I) (2013)
Michael McConnohie Actor (voice) Actor (voice) See fewer	The Big O (1999)
Piotr Michael Edmund Muskie (voice) Edmund Muskie (voice) See fewer	Young Jedi Adventures (2023)
Enn Reitel Actor (voice) Actor (voice) See fewer	Corpse Bride (2005)
Marc Worden Harrison Brown (voice) Harrison Brown (voice) See fewer	The Invincible Iron Man (2007)