Space/Science — HabitableZone

Space/Science » in reply to Active Assessment of Active SETI

We haven't been transmitting for a day, let alone a century

I don't believe for a second that our passive signals are detectable at interstellar distances. I want to see the math that says they are detectable. I suspect that even lasers beamed away aren't detectable either due to divergence and dispersion. Not at the wavelengths we're using.

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