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Astrophysicist Neil deGrasse Tyson on aliens, supervolcanoes and other cosmic queries

Astrophysicist Neil deGrasse Tyson is taking on the big questions of the universe in his new book "Cosmic Queries." Tyson talks to "CBS This Morning" about life beyond Earth, what NASA's Perseverance rover could find and how looking to the sky can help people in times of isolation.
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