Learn about comets and the Rosetta mission while playing the immersive action game “Comet Quest.” The player controls the spacecraft: first, drop the comet lander carefully onto the nucleus; observe and record gas jets, craters, cracks, and other happenings; dodge and dart around ice chunks flying off the nucleus; and, in your spare time, communicate with the lander and with Earth. This free game is available at the Apple app store: http://bit.ly/H519Qd.
