aliens https://refractor.io/tag/aliens/ aliens en-AU Thu, 28 May 2026 01:20:55 GMT Hundreds of conflicting engineering solutions may prevent alien visitors, scientist says https://refractor.io/physics/conflicting-engineering-prevent-alien-visitors/ Artist impression of alien ship in space

Kai James, Georgia Institute of Technology/ The Conversation

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]]> Thu, 28 May 2026 01:20:55 GMT https://refractor.io/physics/conflicting-engineering-prevent-alien-visitors/ The Conversation