Are we alone in the universe? The famous Seti (Search for Extraterrestrial Intelligence) programme has been trying to answer this question since 1959. American astronomer Carl Sagan, and many others, ...
SHOULD we break our interstellar silence? In the 50 years we have been scanning the skies in search of extraterrestrial intelligence, all we have heard is a whole lot of nothing. We have even sent a ...
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