Lights on a planet would be pretty convincing ...
http://www.inquinamentoluminoso.it/worldatlas/pages/fig1.htm
... but very difficult to detect directly from another planet. Back Next Back to Lecture 27 outline Back to lectures page Back to main course page
... but very difficult to detect directly from another planet.
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Back to Lecture 27 outline
Back to lectures page
Back to main course page
