Neil deGrasse Tyson's 5 most important books

American Museum of Natural History astrophysicist Neil deGrasse Tyson told Newsweek about his five most important books.The only novel on his list:Gulliver's Travels by Jonathan Swift.He says Mars has two moons a century before that's discovered. Lucky guess.Read about the other four titles on Neil deGrasse Tyson's list.--Marshal Zeringue