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A comment on Seven earth-sized planets discovered circling a star 39 light years from Earth. Parent comment

Re:Seven earth-sized planets discovered circling a star 39 l... by nabla9 on Wednesday February 22, 2017 @03:17PM (#13708796)
If water freezes on the dark side, moisture in the atmosphere would probably move from warm to dark side and fall down permanently as a snow gradually removing liquid water.

If the oxygen and nitrogen freezes and snows down in the dark side (-220 C or so), the warm side can't have atmosphere either.

Unless there is some way tidally locked planet can have stable air or sea convection between the sides. I don't think they have.

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Re:Seven earth-sized planets discovered circling a star 39 l... by nickhalfasleep on Wednesday February 22, 2017 @09:32PM (#13711174)
If there is enough gravitational pull, the planet itself might be warmed by geologic flexing like Io.
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