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‘Habitable zone’ for alien planets redefined

January 30, 2013

‘Habitable zone’ for alien planets redefined

A new definition is put forth.

Scientists have changed the rules for what constitutes the habitable zone for exoplanets  ­— a Goldilocks-like range of not-too-close, not-too-far distances from the parent star that might allow the planet to host life.

The redefined habitable zone boundaries mean that some planets that were once considered potentially habitable have been kicked out, while others that were once excluded may be reexamined and are now considered potentially habitable.

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