3 ms·
I always wonder, if you draw a sphere around earth, some amount of light years away. How much surface of that outside sphere has our signal gotten in contact wi
by Freestyler_3 8y ago
I always wonder, if you draw a sphere around earth, some amount of light years away. How much surface of that outside sphere has our signal gotten in contact with.
(for the sake of making it easier, say that all signals capable or reaching this distance, have done so)
- gre 8y agoSomething like this: http://www.planetary.org/blogs/emily-lakdawalla/2012/3390.html http://www.planetary.org/blogs/emily-lakdawalla/2012/3390.ht...