Re:My dad launched the quest to find alien intelligence
by jbay808 on Monday June 22, 2020 @01:13AM
(#23597467)
> The Arecibo Observatory and FAST could each detect the TV carrier wave leakage out to a distance of about sixteen lightyears. That’s a little bit further away than Tau Ceti is.
That's for detecting a TV broadcast. But how far away could one Arecibo observatory detect another Arecibo?
> The answer is, that except for obscuration and dust in certain places, it could be anywhere in the galaxy and we would pick up the signals. That means at least one hundred billion stars that you can listen to for signs of extraterrestrial intelligence.
https://www.forbes.com/sites/quora/2017/01/27/how-far-into-s...
That's for detecting a TV broadcast. But how far away could one Arecibo observatory detect another Arecibo?
> The answer is, that except for obscuration and dust in certain places, it could be anywhere in the galaxy and we would pick up the signals. That means at least one hundred billion stars that you can listen to for signs of extraterrestrial intelligence.
https://www.rollingstone.com/culture/culture-news/carl-sagan...