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VANDENBERG AIR FORCE BASE, CALIF. -- An overhead crane hoists the probe carrier assembly on the THEMIS spacecraft to the vibration table (Z-axis). THEMIS, which stands for Time History of Events and Macroscale Interactions during Substorms, comprises five identical probes that will study the dynamic and colorful eruptions of auroras. THEMIS is scheduled to launch Oct. 19 from Cape Canaveral Air Force Station in Florida.
