French National Centre for Space Studies (CNES) president Jean-Yves Le Gall (L), French President Francois Hollande (C) and former French astronaut Claudie Haignere wear 3D glasses during a visit at the Cite des Sciences at La Villette in Paris as they follow the successful landing of the Philae lander on comet 67P/ Churyumov-Gerasimenko, November 12, 2014. [Photo/Agencies]