ASSOCIATED PRESSFrom left, French Education Minister Najat Vallaud-Belkacem, French National Centre for Space Studies (CNES) president Jean-Yves Le Gall, 2nd left, French President Francois Hollande, center, with French astrophysicist Francis Rocard look at a model of Rosetta lander Philae as they visit the Cite des Sciences at La Villette during a broadcast of the Rosetta mission as it orbits around comet 67/P Churyumov-Gersimenko in Paris, Wednesday, Nov. 12, 2014. Hundreds of millions of miles from Earth, a European spacecraft made history Wednesday by successfully landing on the icy, dusty surface of a speeding comet â an audacious first designed to answer big questions about the universe. (AP Photo/Jacques Brinon, Pool)