Nextgeneration rocket technology, now in development, is fueling the dream of traveling across the void by exploiting the physics of extreme speed.

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? Can NASA take us? What are futuristic engineers conjuring up in their labs? Nextgeneration rocket technology is not just for blockbuster movies. It's on the drawing board now as scientists investigate the mindbending physics of extreme speed.