Abundant 'Mini-Neptunes' Form New Class of Alien Planets
Monday, January 6, 2014 - 16:30
in Astronomy & Space
There's a new kind of planet to add to Kepler's cornucopia of alien worlds, and you won't find it in Earth's own solar system. Many of the newfound orbs, described here today (Jan. 6) at a meeting of the American Astronomical Society, have a rocky core.