Rosetta has made the first detection of molecular nitrogen at a comet. The results provide clues about the temperature environment in which Comet 67P/Churyumov–Gerasimenko formed. (Photo : ESA/Rosetta/NavCam – CC BY-SA IGO 3.0)
Since it first touched-down a few months ago, the Rosetta mission has become a superstar in becoming the first ever "ride a comet." However, as of Mar 12, the 100-kilogram lander, Philae, has still hidden its plans as it stays dormant under one of the many comets' cliff.