20K views · 678 reactions | Carl Sagan "That Billions & Billions Stuff!" #carlsagan #cosmos #billions #legacy | Saganism | Facebook
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60 Famous Quotes by Carl Sagan on the Stars and the Cosmos
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30 years ago today, NASA's Voyager 1 spacecraft took an image of our home planet from 6.4 billion kilometers away. Our co-founder Carl Sagan eloquently described what that image meant for humanity. | The Planetary Society
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An Early Draft of Carl Sagan's Famous 'Pale Blue Dot' Quote
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theatlantic.com
2.8M views · 47K reactions | Carl Sagan, who would have been 87 years old today, sent a message out to the Universe during his 1977 #XmasLectures. We worked out how far that message would have travelled at the speed of light since then.  Watch his full lectures, "The Planets" (free/no registration): rigb.org/explore-science/explore/video/planets-earth-planet-1977 | Royal Institution of Great Britain | Facebook
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