Word: starbursts
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Dates: during 1972-1972
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Million Years. The message's most ingenious feature, however, is the large starburst pattern (E). Fourteen of the lines symbolize specific pulsars, each recognizable by the precise frequency (also noted in binary terms) at which they give off radio signals. The 15th line (F), extending behind the humans, indicates the distance of their star to the center of the galaxy. That information should tell extraterrestrial scientists even a million years from now when and from where the spacecraft was launched. For specific details, they can look at a representation of the solar system (G). It shows that Pioneer left...