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July 5, 2014

Zehava and the three bears: in orange - planets that are too hot, in green - too cold, in the middle of the planets that seem to have exactly the right temperature, but it was later discovered that they do not exist Photo: NASA/Penn State University

These are not planets in the habitable zone - just solar flares in the central star that misled the astronomers

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Frost at the Viking 2 landing site. Photo: NASA

Viking B

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