Season 1, Episode 7 The Clean Room

First Aired: April 20, 2014

A look at the work of geochemist Clair Patterson (1922-95), who calculated the age of the Earth—4.5 billion years—using a uranium-lead dating method, and also drew attention to the dangers of lead in the atmosphere and the food chain.

Watch Now
Watch Soon
Jul 14

Guest Cast

Richard Gere Clair Patterson

Next On TVSee all »

Cast & Details See all »

  • Premiered: March 9, 2014
  • Rating: None
  • User Rating:4.71 out of 5 (119 ratings)
  • Your Rating:
  • Premise: Astrophysicist Neil deGrasse Tyson hosts a reboot of Carl Sagan's "Cosmos," the landmark 1980 PBS series that explored all aspects of the universe. The new version features an upgrade of the Cosmic Calendar, and is co-produced by Ann Druyan, Sagan's widow. (more)

Show More »

Trending TonightSee all »