http://kepler.nasa.gov/ The scientific objective of the Kepler Mission is to explore the structure and diversity of planetary systems. This is achieved by surveying a large sample of stars to: Determine the percentage of terrestrial and larger planets there are in or near the habitable zone of a wide variety of stars; Determine the distribution of sizes and shapes of the orbits of these planets; Estimate how many planets there are in multiple-star systems; Determine the variety... read more