Re:The Size of the Human Radio-Broadcast Bubble in the Milky...
by jdelanoy on Sunday February 06, 2011 @10:35PM
(#2187462)
An intelligent race which knows anything about stars would note that Sol has a disproportionately large output in the radio spectrum. This would likely attract considerable attention and debate as to the cause. Careful analysis would reveal a very precise and regular Doppler shift lasting approximately 365.25 days...
That said, 200 light years is an enormous size. Everything that is large enough to take up more than one pixel on the map of our galaxy if freaking huge! People may disagree about the factual relevance of the radio bubble, but it's still immensely cool that we managed to project something this big out there into the world. Looking at this beautiful image of the Milky Way and seeing the unstable little flicker centered on our humble home, I can't help but wonder how many other radiospheres are out there and when they might finally overlap with ours (if they haven't already).