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The Day the Earth Smiled

See the HORIZONS web-interface Tutorial to learn how to generate ephemerides and hence calculate the distance between Earth and Voyager 1 at the specified dates.

Carolyn Porco's opening speech on Pangea Day , May 10, 2008 Carolyn Porco discussed Cassini's image of Earth  and introduced a film based on Sagan's 'Pale Blue Dot' on Pangea Day