Faster Than Light: the Dream of Interstellar Flight

The dream of venturing into the unknown, to see what's over the horizon, is as old as humanity. Today scientists believe our galaxy is filled with planets similar to Earth.

But if one proves habitable, how will we ever get there? Next-generation rocket technology is not just for blockbuster movies. It's on the drawing board now as scientists investigate the mind-bending physics of extreme speed.