ESA 's comet probe Rosetta shows up , sending a signal back to Earth . The spacecraft is nearly 500 million miles from the Sun , angling to rendezvous with a comet . Scientist must now learn how to maneuver the craft around the environment of the comet . Rosetta shook off 31 months of sleep , during which it traveled into the dark reaches of the solar system , and contacted its operators Monday evening . Rosetta is set to meet up with the comet in August , observing it for two weeks .
ESA 's comet probe Rosetta shows up , sending a signal back to Earth . The spacecraft is nearly 500 million miles from the Sun , angling to rendezvous with a comet . Scientist must now learn how to maneuver the craft around the environment of the comet . Rosetta is set to meet up with the comet in August , observing it for two weeks .