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Why does SETI mostly listen for radio instead of light?
In 1977, a volunteer scanning a printout from a radio telescope saw a signal so strong he circled it and wrote 'Wow!' in the margin. It was never heard again.
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In 1977, a volunteer scanning a printout from a radio telescope saw a signal so strong he circled it and wrote 'Wow!' in the margin. It was never heard again.
Tap to go on, or swipe →