The impulse to strike out into the unknown, to see what's over the horizon…is as old as humanity. Today, a whole new horizon beckons. Scientists now believe that our galaxy is filled with solar systems, including up to nine billion Sun-like stars with planets similar to Earth. Astronomers are racing to find habitable worlds, including any that might exist in the neighborhood of our Sun. But if we find one, how will we ever get there? How long will it take? What rocket designs might one day conquer the voids of space? Join narrator Sean Bean on a virtual ride aboard spacecraft of the future, based on whole new technologies designed to achieve ultra-high speeds, using exotic next generation rocket fuels and breakthrough concepts in physics. How far can our technology take us?