We may not have found aliens yet because we’ve barely begun looking
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We may not have found aliens yet
because we’ve barely begun looking
A
new calculation compares the effort so far to exploring a hot tub’s–worth of
Earth’s oceans
IS
ANYBODY OUT THERE? The
Arecibo radio telescope in Puerto Rico has been used for decades in the search
for extraterrestrial intelligence (SETI) but has barely made a dent in the
space to be searched, new calculations suggest.
COURTESY OF THE NAIC-ARECIBO OBSERVATORY, AN NSF
FACILITY
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