Now go read about all the crazy tech that's being thrown into it, like the "Magneto-plasmo-chemical engine". It has a plasma generating friken laserrr just to scare the air in front the hell out of the way. COMING THROUGH, ATMOSPHERE! STAND ASIDE!!
It goes so fast, it cracks water into H2 and O2 by the power of sheer awesome - AND THEN BURNS IT TO GO FASTER!!!