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27:56 — Nobel Laureate John Mather and Nat Geo Explorer-in-Residence Robert Ballard discuss how technology expands the limits of the known universe.
Robert Ballard explains why ocean exploration is a good investment.
Republicans try to appeal to Latinos, a beloved American mascot gets a makeover, and Robert Ballard talks about the Titanic.
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The man who plays Abraham talks about what to expect in Season 7