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A rare exoplanet that should have been stripped down to bare rock by its nearby host star's intense radiation somehow grew a puffy atmosphere instead -- the latest in a string of discoveries forcing scientists to rethink theories about how planets age and die in extreme environments. Nicknamed 'Phoenix' for its ability to survive its red giant star's radiant energy discovered planet illustrates the vast diversity of solar systems and the complexity of planetary evolution -- especially at the end of stars' lives.

Yale researchers found that binary star systems with planets could be habitable, if the all the orbits in the system are aligned.

Yale study finds climate-friendly Tatooine-like planets in binary star systems, suggesting orderly cosmic alignment.

<p>Luke Skywalker&rsquo;s childhood might have been slightly less harsh if he&rsquo;d grown up on a more temperate Tatooine &mdash; like the ones identified in a new, Yale-led study.</p> <p>According to the study&rsquo;s authors, there are more climate-friendly planets in binary star systems &mdash; in other words, those with two suns &mdash; than previously known. And, they say, it may be a sign that, at least in some ways, the universe leans in the direction of orderly alignment rather than chaotic misalignment.</p>

A recent Yale-led study suggests that planets orbiting two stars might actually have climates more conducive to life than previously thought.