KAKU ON DISCOVERY OF 7 EXOPLANETS

NASA announced the discovery of seven Earth-sized planets orbiting "Trappist-1," a faint star about 39 light years away in the "Aquarius" constellation. Three of them fall into the habitable or so-called "Goldilocks" zone, considered capable of supporting life as we know it. CBS News science and futurist contributor Dr. Michio Kaku joins ‘CBS This Morning’ to provide insights on this landmark find. WATCH NOW!