A NASA artist’s impression of Earth as a frigid “‘snowball” planet. New research from the University of Washington indicates that aspects of an otherwise habitable-seeming exoplanet planet’s axial tilt or orbit could trigger such a snowball state, where oceans freeze and surface life is likely impossible. Credit: NASA
Aspects of an otherwise Earthlike planet’s tilt and orbital dynamics can severely affect its potential habitability – even triggering abrupt “snowball states” where oceans freeze and surface life is impossible, according to new research from astronomers at the University of Washington...
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