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August 2, 2013
In a clean room at Vandenberg Air Force Base in California, workers ensure NASA's CloudSat spacecraft is lowered safely into the lower portion of the Delta Payload Attach Fitting. CloudSat joins the CALIPSO spacecraft for launch. CALIPSO stands for Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation. CALIPSO and CloudSat are highly complementary satellites that will provide never-before-seen 3-D perspectives of how clouds and aerosols form, evolve, and affect weather and climate. CALIPSO and CloudSat will fly in formation with three other satellites in the A-train constellation to enhance understanding of our climate system. Launch of CALIPSO/CloudSat aboard a Boeing Delta II rocket is scheduled for 3:01 a.m. PDT Sept. 29. Credit: NASA