The Pale Blue Dot is a photograph of planet Earth taken in 1990 by Voyager 1 from a record distance of 6 billion km. Both the idea for taking the distant photo and the title came from scientist and astronomer Carl Sagan (narrating), who also wrote the 1994 book of the same name.
Voyager 1 will continue to travel away from our solar system at a speed of 18km per second. It will not come close (1.6 light years) to another star for another 40,000 years.
Wednesday, August 26, 2009
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