A compilation of the best 'Secrets Of The Universe' episodes featuring epic black holes, nuclear furnaces at the core of giant stars and volcanic pressure cookers inside planets all across the immense reaches of time and space, the universe is being transformed by seething caldrons of energy. Episodes include Black Holes, Super Volcanoes, The Mysterious Birth of the Moon, Oasis In Space, Undiscovered Worlds, Death of Stars, and The Search for the Edge of the Universe.