The European Space Agency said on February 12 that the Philae lander faces ?eternal hibernation? on the comet on which it landed. On November 12, 2014, Philae made history when it left the Rosetta spacecraft after a 10-year voyage and successfully landed on comet 67P/Churyumov-Gerasimenko. The lander sent back the first images from a comet?s surface...