SpaceAdmiral writes "Inspired by Luke Skywalker, M.I.T. students have built five droids for the ISS. The orb-shaped devices will float around the International Space Station, maneuvered by compressed CO2 thrusters. The SPHERES (Synchronized Position Hold Engage Re-orient Experimental Satellite) will eventually be deployed as tiny satellites, but they first require testing aboard the ISS to learn to fly in formation. One has already been sent to the ISS and two more will join it soon."
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