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CAPE CANAVERAL, Fla. -- On Complex 17-B at Cape Canaveral Air Force Station in Florida, workers guide the second stage of the Delta 2 rocket for mating with the first stage. The Delta 2 is the launch vehicle for NASA's Kepler spacecraft. The Kepler mission is specifically designed to survey our region of the Milky Way galaxy to discover hundreds of Earth-size and smaller planets in or near the habitable zone and determine how many of the billions of stars in our galaxy have such planets. Results from this mission will allow us to place our solar system within the continuum of planetary sy…
