nostr:npub1knzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqpac73p Amazingly, the radio power received on earth from the Voyager spacecraft transmitting in the GHz range at 20 W is about an ***attowatt (1e-18 W)***, since they are on the order of 20 billion kilometers from earth !

See info here (it refers to Voyager 1 but for these estimates I think both Voyager are about the same figures):

https://public.nrao.edu/ask/how-strong-is-the-signal-from-the-voyager-1-spacecraft-when-it-reaches-earth/

#Voyager #Voyager2

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