SCIENCE NEWS OF THE DAY: The Space-Train to Kepler-22b Leaves in Five...ALL ABOARD!

A planet about twice the size of Earth has been confirmed to exist right in the middle of the "habitable zone" around its star, which is much like our own. Previous research had hinted at the existence of such Earth-like planets, where liquid water could exist, but this is the first time such a life-friendly alien planet has been confirmed. -Irene Klotz