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CAPE CANAVERAL, Fla. – Inside the Prototype Laboratory at NASA's Kennedy Space Center in Florida, Evan Williams, an Education intern from the University of Central Florida, prepares the experiment container for NASA's Exposing Microorganisms in the Stratosphere, or E-MIST, experiment. The container was designed and built at Kennedy. The 80-pound structure features four doors that rotate to expose up to 10 microbial samples each for a predetermined period of time in the Earth's stratosphere. The E-MIST experiment will launch on the exterior of a giant scientific balloon gondola at about 8 a.m. MST on Aug. 24 from Ft. Sumner, New Mexico. It will soar 125,000 feet above the Earth during a 5-hour journey over the desert to understand how spore-forming bacteria, commonly found in spacecraft assembly facilities can survive. Photo credit: NASA/Kim Shiflett