On today's episode of Cool Science Radio : We talk about the dawn of a revolution in astronomy with our guest, science writer Lee Billings. For the first time ever, astronomers may have glimpsed light from a world in a life-friendly orbit around another star. This promising potential world was spied around Alpha Centauri. Could it be a planet? Could it be a "warm Neptune", or is it a mirage? Billings explores the potential of these findings and how it could bring about a new era in astronomy.