NASA's New Horizons Probe Prepares To Make HistoryAgain
b'Way, way out at the cold, dark edges of the solar system\\u2014past the rocky inner planets, beyond the gas giants, a billion miles more remote than Pluto\\u2014drifts a tiny frozen world so mysterious, scientists still aren\'t entirely sure if it\'s one world or two. Astronomers call it Ultima Thule, an old cartography term meaning "beyond the known world.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'