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submitted 3 months ago by Persona3Reload@lemmy.blahaj.zone to c/196@lemmy.blahaj.zone

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[-] SteveTech@programming.dev 20 points 3 months ago

I'm not a radio engineer, but my understanding is you're just bouncing signals off the moon itself, there isn't a device that echos the signal back or anything. There are mirrors on the moon to reflect lasers back though.

[-] Strykker@programming.dev 12 points 3 months ago

They left a couple retro reflectors on the moon during the moon landings so we can bounce lasers off them to accurately measure the distance to the moon.

[-] tyler@programming.dev 4 points 3 months ago

I think that’s what they meant, cuz a ping to a radio device wouldn’t prove much, just that you are getting signals from up there. A laser would prove definitively.