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trinitree88
2017-May-04, 03:38 PM
Plenty of Exoplanets out there.....and counting as we speak. To think that 500 years ago, scant maps existed of lands beyond a thousand miles from any destination on earth, then gradually more use of trigonometry, optical instruments and measuring techniques...better maps....and today's article on mapping the surfaces of planets orbiting distant stars. Pretty impressive. SEE:https://arxiv.org/abs/1704.07832 :clap: pete