![](http://o.aolcdn.com/hss/storage/midas/e3f777fe6f0c430c434f50bde152161d/204024108/rosettadec2015.jpg)
Farewell, young spacecraft. The European Space Agency's Rosetta probe has been surveying Comet 67P (or Churyumov-Gerasimenko) for the past 12 years, and on September 30th it will crash into the space rock and end its mission. Rosetta is nearing the o...