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Exploring scientists’ first ET communication attempt

With the launch of Pioneer 10 in 1972, Carl Sagan and colleagues reached out to any civilization that could possibly encounter the spacecraft.
RELATED TOPICS: SPACE FLIGHT | PIONEER
Pioneer-plaque
In the September issue, David L. Chandler describes how the hunt for extraterrestrials in the universe has changed in the past few decades in “The new search for alien intelligence.” The article describes how other life-forms on distant planets might unintentionally communicate with us, but 40 years ago, talks of ET were just as much as how we might communicate with them.

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