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Fermi Paradox Paper: Aliens Could Take Their Time Settling the Galaxy

posted by chromas on Tuesday September 10 2019, @05:55AM   Printer-friendly

Anonymous Coward writes:

https://www.businessinsider.com/alien-civilizations-may-have-already-colonized-galaxy-study-2019-8

The Milky Way could be teeming with interstellar alien civilizations — we just don't know about it because they haven't paid us a visit in 10 million years.

A study published last month in The Astronomical Journal[$] posits that intelligent extraterrestrial life could be taking its time to explore the galaxy, harnessing star systems' movement to make star-hopping easier.

The work is a new response to a question known as the Fermi paradox, which asks why we haven't detected signs of extraterrestrial intelligence.

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  • (Score: 2) by HiThere on Tuesday September 10 2019, @08:42PM (2 children)

    by HiThere (866) Subscriber Badge on Tuesday September 10 2019, @08:42PM (#892364) Journal

    You are overly optimistic about the durability of concrete. The Romans made more durable concrete than our modern stuff, and I don't think their stuff would last that long.

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  • (Score: 2) by dry on Wednesday September 11 2019, @06:08AM

    by dry (223) on Wednesday September 11 2019, @06:08AM (#892562) Journal

    Bones are even less durable and we find evidence of them going back for 100's of millions of years. The same or similar processes such as mineral replacement could preserve concrete, metal and even plastic.

  • (Score: 0) by Anonymous Coward on Wednesday September 11 2019, @07:38AM

    by Anonymous Coward on Wednesday September 11 2019, @07:38AM (#892586)

    once you bury it in mud and you bury the mud under more mud, it will leave a lasting trace. just like bones and wood and feathers.