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 Neil deGrasse Tyson makes a few remarks at a Celebration Of Carl Sagan at The Library of Congress on November 12, 2013 in Washington, DC.
 Neil deGrasse Tyson makes a few remarks at a Celebration Of Carl Sagan at The Library of Congress on November 12, 2013 in Washington, DC.

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Astrophysicist Neil deGrasse Tyson tells Christiane Amanpour that science and math are the engines of tomorrow's economy.

Neil deGrasse Tyson on space, science

Astrophysicist Neil deGrasse Tyson tells Christiane Amanpour that science and math are the engines of tomorrow's economy.