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Jul 2016

  1. Discovery of an Exoplanet Orbiting Three Stars

    A team of astronomers led by University of Arizona doctoral student Kevin Wagner and NExSS PI Daniel Apai has discovered a planet in a unique position between three stars. The planet, HD 131399Ab, is unlike any other known world – on by far the widest known orbit within a multi-star system....

  2. Solar Storms and the Faint Young Sun Paradox

    Early in our planet’s history, our Sun was about 30% dimmer than it is today. Despite this, evidence for running water and the presence of life on Earth dates back more than 3 billion years. This is referred to as the “Faint Young Sun” paradox. For decades scientists have suggested...

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