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A comment on Beyond “Fermi’s Paradox” XVI: What Is the “Dark Forest” Hypothesis?. Parent comment

Re:Beyond “Fermi’s Paradox” XVI: What Is the “Dark Forest” H... by jamiek88 on Friday July 16, 2021 @10:04AM (#27856319)
Light years with the right telescope. It’s just spectroscopy.
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Re:Beyond “Fermi’s Paradox” XVI: What Is the “Dark Forest” H... by jeremyjh on Saturday July 17, 2021 @08:27PM (#27869871)
Yes but only a tiny fraction of our sun's light would pass through earth's atmosphere on its way out of the solar system, I didn't think spectroscopy would be possible very far away.
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