View Full Version : Viewing Earth as an Extra-Solar Planet

2009-Jan-13, 11:10 PM
What if another civilization had telescopes and spacecraft better than ours? Would Earth be detectable from another planet a few light-years away? Likewise, what will it take for us to detect life on an Earth-like planet within a similar distance? It's interesting to consider those questions, and now, there is data to [...]

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