This artist concept depicts "multiple-transiting planet systems," which are stars with more than one planet. The planets eclipse, or transit, their host stars from the vantage point of the observer. This angle is called edge-on. NASA's Kepler Space Telescope has found hundreds of these multiple-planet systems.
NASA Ames manages Kepler's ground system development, mission operations and science data analysis. NASA's Jet Propulsion Laboratory in Pasadena, Calif., managed Kepler mission development. Ball Aerospace & Technologies Corp. in Boulder, Colo., developed the Kepler flight system and supports mission operations with JPL at the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder. The Space Telescope Science Institute in Baltimore archives, hosts and distributes the Kepler science data. Kepler is NASA's 10th Discovery Mission and is funded by NASA's Science Mission Directorate at the agency's headquarters in Washington.
More information about the Kepler mission is at http://www.nasa.gov/kepler.