NPR Story
3:15 pm
Wed June 27, 2012

A Peek Inside Astronomer Carl Sagan's Mind

Originally published on Wed June 27, 2012 8:53 pm

The astronomer Carl Sagan made it his life's work to engage the public in the world of science and exploration. The Library of Congress announced Wednesday that it's acquired his personal papers. Host Audie Cornish talks with Ann Druyan, Sagan's widow.