Aspiring teenage astronauts reveal that a journey to Mars is closer than you think.

The inside story of SpaceX's plan to get humanity to Mars, providing an unprecedented glimpse into one of the world's most revolutionary companies. A behind-the-scenes journey with Elon Musk and his engineers as they persevere amidst both disheartening setbacks and huge triumphs to advance the space industry faster than we ever thought possible.