The library has acquired the late astronomer's papers with a donation from MacFarlane, the creator of TV's "Family Guy." Sagan's widow and collaborator, Ann Druyan, will join the dedication Tuesday, along with astrophysicist Neil deGrasse Tyson, Bill Nye and others.
Sagan was a pioneering space scientist, educator and Pulitzer Prize-winning author. He's credited with helping to bridge the gap between academics and popular culture.
The collection is comprised of 1,705 archival boxes of materials. It includes Sagan's earliest notebooks and report cards, his correspondence with scientists, and drafts and documents from the first 40 years of the space age.
The library is posting new science resources online.
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.