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The Search For Et: How Close Are We?


The Wow! signal

The Wow! signal: detected in 1977, it has never been repeated.

Credit: The Ohio State University Radio Observatory and the North American AstroPhysical Observatory

In 1950, Nobel prizewinning physicist Enrico Fermi posed his famous paradox: if extraterrestrial intelligence exists, why haven't we found it?

From New Scientist
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