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Alien signal or damp squib? Rio 2.0 scale promises to help judge

When a team of Russian astronomers reported in 2015 that a telescope in the Caucasus region had intercepted a mysterious ...
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Are we alone? If not, why hasn’t anyone dropped by Earth for a visit?

Scientists disagree on the probability that advanced extraterrestrials exist somewhere in the universe. Among the biggest arguments against aliens is ...
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A rabbi and an alien walk into a bar: What happens when religious leaders meet extraterrestrials?

The search for extraterrestrial intelligence (SETI) presents a challenge for the major religions, who might find themselves threatened if alien ...