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Carl Sagan: Cosmos, Pale Blue Dot & Famous Quotes
Carl Sagan was a scientist and educator best known for his TV series Cosmos, the Pale Blue Dot image of Earth and quotes about life and Earth.
Carl Sagan Cosmos
Candle In The Dark
Radio Astronomy
Pale Blue Dot
Extraordinary People
Carl Sagan
Space Program
Psychology Today
Space Science
Space.com (Official)
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