Within this century human beings will travel to Mars. Today on Earth the countdown has begun for the most heroic but deadliest expedition, the first manned mission to Mars. The journey will take a new class of spaceship unparalleled in ingenuity and a new breed of astronauts, it's almost certain people will die in the attempt to fulfill a dream to explore worlds beyond Earth. It will be a two and a half year odyssey to journey hundreds of millions of kilometers of space to answer the question are we alone. The quest to explore the universe begins on Mars.

Part 2: Rocket Power

Part 3: Staying Alive