Optical navigation enables sample collection from asteroid
NASA took on a Herculean precision positioning task that culminated Oct. 20 with a spacecraft sampling the surface of an asteroid from a 5-meter area — a NASA first. The OSIRIS-REx spacecraft, launched on Sept. 8, 2016, spent two years mapping the Bennu asteroid to determine the best site for removing the sample. Bennu was selected because of its near-Earth... read more
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