关于这张图
CAPE CANAVERAL, Fla. – The gantry on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida shows the various logos of NASA's Kepler spacecraft launch. Kepler is a spaceborne telescope designed to search the nearby region of our galaxy for Earth-size planets orbiting in the habitable zone of stars like our sun. The habitable zone is the region around a star where temperatures permit water to be liquid on a planet's surface. The challenge for Kepler is to look at a large number of stars in order to statistically estimate the total number of Earth-size planets orbiting sun-like stars i…
