Comment on A man who used music to try to lure aliens to earth (2020)parentComments−exe342yThey can probably just watch co2 spectral lines and count how many of us there are.−qbrass2yJust as many as on Mars, but hardly any compared to Venus.
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They can probably just watch co2 spectral lines and count how many of us there are.
Just as many as on Mars, but hardly any compared to Venus.