With the Space Shuttle's last ride right around the corner, there's a worry that NASA will be out of the manned spaceflight game for good, leaving it to the private sector instead. Well, walking back out onto the stage like a rockstar for an encore, NASA just screamed, "We're going into deep space, ya'll!" before diving into the crowd. At the heart of NASA's "Deep Space Transportation System" is a manned crew-capsule-and-rocket combo the agency has tasked Lockheed Martin with cobbling together. Called the Multi-Purpose Crew Vehicle (or MPCV), NASA envisions the spacecraft taking a crew of four astronauts into deep space...