This is not a test in science fiction, but a real release of one massive payload headed for space, courtesy of NASA. What you're about to see - as early as Wednesday of this week - is NASA's second flight of its saucer-shaped Low-Density Supersonic Decelerator. That's also known as LDSD. This craft was first launched aboard a giant helium balloon from the United States Navy's Pacific Missile Range Facility in Kauai, Hawaii all the way back in June of last year. This time, it's headed for a cool 180,000 feet above the surface of the earth.