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      Astrophysics for Young People in a Hurry by Degrasse Tyson, Neil
      Astrophysics for Young People in a Hurry -- Neil Degrasse Tyson, Paperback
      $11.95 $8.99
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      On the Origin of Time: Stephen Hawking's Final Theory by Hertog, Thomas
      On the Origin of Time: Stephen Hawking's Final Theory -- Thomas Hertog, Hardcover
      $28.99 $18.99
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      Thanks a Lot, Universe by Lucas, Chad
      Thanks a Lot, Universe -- Chad Lucas, Paperback
      $8.99 $6.99
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      You and the Universe by Hawking, Stephen
      You and the Universe -- Stephen Hawking, Hardcover
      $19.99 $13.99
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      You Owe Me One, Universe (Thanks a Lot, Universe #2) by Lucas, Chad
      You Owe Me One, Universe (Thanks a Lot, Universe #2) -- Chad Lucas, Hardcover
      $17.99 $12.99