Orbital variations can trigger ‘snowball state…

Seattle WA (SPX) May 15, 2018

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.

The research indicates that locating a planet in its host star’s “habitable zone” – that swath of space j
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