The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

And if aliens made of different stuff potentially possess consciousness, then why not minds made of silicon, metal, and ...

Scientists blast the idea that consciousness is confined to human or animal brains in a provocative new paper published this ...

To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, a new paper suggests. A few known star systems might fit the bill. When ...

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Some people will look at this thing and go: “It’s a comet.” Others will look at it and go: “It’s alien technology.” According to ScienceAlert, it was July 1 when astronomers clocked a strange, ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

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An advanced alien civilization may want to cruise around the galaxy, and the best way to do that is by steering their binary star system, a researcher proposes in a new paper. Long-lived civilizations ...