Rosetta is a European Space Agency (ESA) built and launched, semi-autonomous robotic spacecraft on its mission to study the environment, physical properties and dynamics of the comet 67P/Churyumov–Gerasimenko as it passes close to the Sun and forms its coma and tails. It is a large orbiter with 12 onboard instruments, and a robotic lander Philae designed to touch down and grip to the comet's surface to study its nucleus. See also the [philae] tag.

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