Welcome to a Comet . ... Credit Copyright: ESA/Rosetta/Philae/CIVA Explanation: The Rosetta Mission lander is safely on a comet. One of Philae's feet appears at the bottom left of this spectacular image of the surface of C67/P Churyumov-Gerasimenko. ... Philae's science instruments are working as planned and data is being relayed during communications windows, when the Rosetta spacecraft is above the lander's new horizon . ... NASA Web Site Statements, Warnings, and Disclaimers . ...