WASHINGTON, DC - NOVEMBER 12: Librarian of Congress James H. Billington makes a few remarks at a Celebration Of Carl Sagan at The Library of Congress on November 12, 2013 in Washington, DC. (Photo by ... more 
WASHINGTON, DC - NOVEMBER 12: Librarian of Congress James H. Billington makes a few remarks at a Celebration Of Carl Sagan at The Library of Congress on November 12, 2013 in Washington, DC. (Photo by Paul Morigi/Getty Images) less 
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Getty Images | Photo By Paul Morigi / Getty Images
Tue, Nov 12, 2013 2:55 PM EST