The European Space Agency's Rosetta spacecraft, which carries three NASA instruments, is expected to "wake up" on Jan. 20. The Rosetta mission is set to observe a space-bound icy dirt ball from up close -- for months on end. The spacecraft, festooned with 25 instruments between its lander and orbiter (including three from NASA) will monitor comet 67P/Churyumov-Gerasimenko as it makes its nosedive into, and then climb out of, the inner solar system.
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