James Webb Space Telescope Might Be Able to Detect Alien Agriculture - ExtremeTech

A team of astronomers recently explained how the new observatory might be able to spot "exofarms" when it begins scanning the heavens later this year.

If you were an alien looking at Earth from a great distance, it would have looked mostly the same right up until 10,000 years ago. That’s when humans invented agriculture, and the planet has never be… [+2724 chars]

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