Future generations will look back on our epoch as the time when the human race finally broke into a radically new frontier--space. In Pale Blue Dot Sagan traces the spellbinding history of our launch into... continue reading
posted by mlx 1 decade 7 years 8 months 3 weeks ago • 4,471 viewsThe Best of the Nature Channel
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Updated: 1 decade 5 years 4 months 2 weeks ago
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