2016年12月20日 星期二

Connecting with Carl Sagan at the Library of Congress

Whether you explore The Seth MacFarlane Collection of the Carl Sagan and Ann Druyan Archive online or at the Library of Congress during a visit to Washington, D.C., you’ll learn something new and have a deeper understanding of Carl Sagan.

from Planetary Society Blog http://ift.tt/2hVOiVq
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