The European Space Agency’s Rosetta mission launched March 2, 2004, on a 4-billion-mile (6.4 billion kilometers) path to Comet 67P/Churyumov-Gerasimenko. The mission consisted of the Rosetta orbiter and the Philae lander, both designed for in-depth study of the comet. The spacecraft arrived at 67P/C-G on Aug. 6, 2014, and began orbiting the body a monthContinue reading “Nov. 12, 2014: The Philae lander touches down on a comet”
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