The Arecibo Reply: How We Know Aliens Aren’t Calling Us Through Crop Circles
When astronomers sent out the Arecibo message to communicate with aliens, they weren’t expecting a reply in the form of a crop circle – and, indeed, a hoax
The Arecibo Reply: How We Know Aliens Aren’t Calling Us Through Crop Circles
When astronomers sent out the Arecibo message to communicate with aliens, they weren’t expecting a reply in the form of a crop circle – and, indeed, a hoax
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