It has been a productive 12 years for the Rosetta space probe, but the end of the mission is near. The spacecraft, which was launched by the European Space Agency in 2004, is set to crash onto the comet 67P/Churyumov-Gerasimenko, ending a mission that saw part of the probe, known as Philae, land on the comet in November 2014. Rosetta will receive its...