Scientists discovered a new 'super-Earth,' and want to know if it could sustain life

Scientists studying data from the Alpha Centauri star system on Wednesday announced what they believe is a second Earth-like planet orbiting the star closest to the sun. The finding, announced via a study in the journal Science Advances, is built from the analysis of 17 years of data focused on light signals that appear to be coming from the direction of this newly identified planet. And it's a planet that offers scientists a rich bounty of opportunity to study another star system -- and which m...