Re:First habitable exoplanet discovered?
by pohl on Tuesday May 17, 2011 @09:00AM
(#2556191)
Let's grant the speed of light on the return side. Say we invent a method of transmitting probe data using radio waves or something.
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Getting data back via radio seems physically realistic using the gravitational lensing of EM by our sun. It would require us to put a receiving and relay station very var out beyond the planets, at least 550AU, I think. But by the time we are sending a probe several light years, then 550AU should practically be child's play.
A good paper about using such lensing: "Interstellar radio links enhanced by exploiting the Sun as a Gravitational Lens" by Claudio Maccone.