NATIONAL GEOGRAPHIC - When inspecting the cosmos for potentially habitable worlds, scientists have long looked for the color green. Green is the fundamental color of life on Earth, after all. But what if life on faraway planets wasn’t green at all? In fact, what if it were purple? Signatures of habitable worlds Astronomers look for...
SCIENTIFIC AMERICAN - Is our solar system quotidian or quirky? It’s one of the greatest questions in astronomy, and scientists are getting a little bit of a handle on it as they examine the more than 5,500 exoplanets (and counting) discovered around other stars. Reaching an answer is, however, confounded by a rather dramatic problem...