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Originally Posted by Confed999
Cool post. A 50 light year, and expanding, bubble is pretty big. If every alien civilization has something similar, detection is only a matter of time. Still, I would rather they concentrate their efforts on our solar system and the objects/conditions that could harm/help us here.
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Glad ya enjoyed it. Ya 50 ly is pretty big. Would have the surface area of around 10^30 mi^2 (approximating it as a sphere). I think our planet's SA is on the order of 10^8 mi^2. So, ya, just a lil bigger
