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Lockheed is getting into the reusable spacecraft business
Far and away, the most expensive part of manned spaceflight involves just getting the payload off the ground. But as humanity expands its extraterrestrial influence beyond the International Space Station to the moon, Mars and beyond, space-faring nations are increasingly turning to reusable shuttle vehicles to do much of the heavy lifting. Currently, Orbital ATK's Cygnus space vehicle and SpaceX's Dragon capsule are the only two systems cleared to dock at the ISS. On Thursday, however, Lockheed Martin unveiled its proposal for a third such system: the proprietary cargo pod, Exoliner, and autonomous space tug, Jupiter.
