

This Sagan drawing in just one example of some of the pieces that are part of The Seth MacFarlane Collection of Carl Sagan and Ann Druyan Archive at the Library of Congress. 9, the anniversary of his birth, Sagan fans are encouraged to wear a turtleneck sweater with a brown jacket - and to "celebrate the beauty and wonder of the cosmos he so eloquently described". On Carl Sagan Day, an unofficial annual holiday on Nov.

While Sagan did wear a variety of clothing on "Cosmos: A Personal Voyage," he became as known for sporting a turtleneck, topped with a professorial blazer, as for his passion about the universe.

Among the items was an article so iconic, it is forever linked to Sagan's persona: one of his signature turtlenecks. The display showcased clips from the show reboot, as well as memorabilia from current host, Neil deGrasse Tyson, and original host, Carl Sagan. In March 2014, the "Cosmos: A Spacetime Odyssey" exhibit opened at the National Geographic Museum in Washington, D.C. Carl Sagan wears one of his trademark turtleneck sweaters in a laboratory at Cornell University in Ithaca, New York in the '70s.
