FROM

science

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One of the most important characteristics of an alien planet is whether or not it falls into what’s called the habitable zone ­— a Goldilocks-like range of not-too-close, not-too-far distances from the parent star that might allow the planet to host life.

Now scientists have redefined the boundaries of the habitable zone for alien planets, potentially kicking out some exoplanaets that were thought to fall within it, and maybe allowing a few that had been excluded to squeeze in.

“This will have a significant impact on the number of exoplanets that are within habitable zone,” said research team leader Ravi Kumar Kopparapu of Penn State University.

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Habitable Zone Planets

A new definition of the habitable zone around planets, denoting where liquid water
could exist, shifts Earth toward the very edge of the solar system’s own habitable zone.

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.Click link below for story, slideshow, and video:

http://www.huffingtonpost.com/2013/01/30/habitable-zone-alien-planet-exoplanet-goldilocks_n_2580640.html?utm_hp_ref=science

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