The solar system humanity calls home may have once been inhabited by an extinct species of spacefaring aliens, a top scientist has suggested. A space scientist has suggested ancient extraterrestrials could have lived on Mars, Venus or even Earth before disappearing without a trace. In a fascinating academic paper about “prior indigenous technological species,” James T. Wright from Pennsylvania State University raised the fascinating possibility that evidence of these extinct aliens could exist somewhere in the solar system. Wright is an astronomer who received global attention after suggesting an “alien megastructure” had been spotted in orbit around a distant star. Now the stargazer has said advanced aliens may have left behind “technosignatures” for us to find. “Remaining indigenous technosignatures might be expected to be extremely old, limiting the places they might still be found to beneath the surfaces of Mars and the Moon, or in the outer Solar System,” Wright added....[
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