Radio telescopes cannot see Voyager 1 in visible light, but rather see the spacecraft signal in radio light. This image of Voyager 1 signal on Feb. 21, 2013. At the time, Voyager 1 was 11.5 billion miles 18.5 billion kilometers away.
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Details
Title: Voyager Signal Spotted By Earth Radio Telescopes
Creator: NRAO/AUI/NSF
Date Created: 2013-09-12
Rights: JPL
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