Discovery of an Exoplanet Orbiting Three Stars Entry #12 07 Jul 2016 4:18 pm 0 comments 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....
Solar Storms and the Faint Young Sun Paradox Entry #11 01 Jul 2016 3:05 pm 0 comments 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...