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CAPE CANAVERAL, Fla. – At the Astrotech Space Operations facility in Titusville, Fla., Boeing spacecraft fueling technicians from Kennedy Space Center prepare the equipment necessary to sample the monomethylhydrazine propellant that will be loaded aboard the Solar Dynamics Observatory, or SDO. The hydrazine fuel is being sampled for purity before it is loaded aboard the spacecraft. The technicians are dressed in self-contained atmospheric protective ensemble suits, or SCAPE suits, as a safety precaution in the unlikely event that any of the highly toxic chemical should escape from the stor…