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"Look again at that dot. That's here. That's home. That's us."
billions and billions
Watch a young Carl Sagan's first TV documentary, "The Violent Universe" (1969)
Carl Sagan's Pale Blue Dot image is 30 years old today
Solar sail test successful so far!
Watch Carl Sagan's classic lecture series for kids and adults
ship of the imagination
Happy birthday, Carl Sagan. Wish you were here.
Cool collaborative student animation of Sagan's "The Pale Blue Dot" speech
Ann Druyan on the new Carl Sagan-narrated Apple commercial
Animated interview with Carl Sagan about extraterrestrial life, Hollywood, and God
Carl Sagan and Timothy Leary