Source: NBC News
quote: As far as reusable spacecraft go, the Space Shuttle had the right idea.
quote: I suspect the most energy efficient way to travel to space and return is to take-off like a plane and fly to altitude, use rockets to get into orbit, use atmospheric drag to get out of orbit, then fly to a landing like a plane.
quote: As far as reusable spacecraft go, the Space Shuttle had the right idea. You injected gobs of energy into the spacecraft to put it into orbit. Instead of bleeding it all off during descent, save some of it so you can glide to a landing.