okay, so, here's something for you to ponder as you drink your morning coffee, are we alone in the universe? thanks to an amazing discovery, we may be closer to answering the age-old question. >> oh, i hope we're not alone. scientists have found three planets called super earths that could potentially support life. one big problem, they're 22 light years away. that's right. cnn's tom foreman explains. >> reporter: as of today, we believe we are on the only inhabitable planet in the solar system, but that doesn't necessarily mean we are alone in the universe, because scientists have been looking way out there, about 22 light years away to the consolati consolation scorpius, where they found a sun circulated by three planets. it's called gliese 667, and if