Season: 1 | Episode: 2 | Length: 60m
Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness. He examines some of its least-explored regions and finds out what lies beyond the reach of even the most powerful telescopes, with the solar system not just a few worlds orbiting close to the Sun, but an enormous structure that stretches halfway to the nearest star.
