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Rosetta approaches Lutetia (animation) On July 10, 2010, ESA's Rosetta spacecraft flew within 3,200 kilometers of (21) Lutetia, the largest asteroid yet visited by a spacecraft. The 46 images in this animation were taken as the spacecraft approached the rotating asteroid, up to a distance of about 80,000 kilometers. ESA / Rosetta / MPS for OSIRIS Team MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA