The sunlit side of the earth is far too hot to inhabit in many places - the ‘Coldside’ is uninhabitable in just the opposite way. Life clings on in a narrow, su

The sunlit side of the earth is far too hot to inhabit in many places - the ‘Coldside’ is uninhabitable in just the opposite way. Life clings on in a narrow, sunlit ring - a kind of Goldilocks Zone