How the Universe Works - Planets from Hell

Seizoen: 2 - Aflevering: 3 / 11 - Eerst uitgezonden: 25 juli 2012 - Episode ID: 649998

Over the last twenty years we have discovered an extraordinary zoo of planetary nightmares outside our own solar system, all of them truly wild worlds, a collection of monsters. Now we must face the question: Is every planet out there a planet from hell?