5 astronauts talk about National Geographic's 'One Strange Rock,' life in space

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Megyn Kelly TODAY welcomes astronauts Peggy Whitson, Mae Jemison, Leland Melvin, Chris Hadfield and Mike Massimino, who are all featured in National Geographic’s new 10-part series “One Strange Rock.” They all agree that intelligent life exists on other planets, but Massimino says, “We have the nicest home on the block.”