Scientists have long scanned the sky for radio signals and other broadcasts in search of alien civilizations. But a new paper argues against this approach. It states that the civilizations we're ...

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Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

Scientists say bad space weather may be one reason alien tech signals have not reached our telescopes in a usable form, after astronomer Vishal Gajjar and colleagues reported in The Astrophysical ...