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In page David M. Brown:
"Brown flew aboard Space Shuttle Columbia on STS-107, logging 15 days, 22 hours, and 20 minutes in space from January 16 to February 1, 2003. The flight was a dedicated science and research mission. Working 24 hours a day, in two alternating shifts, the crew successfully conducted approximately 80 experiments. The mission ended abruptly on February 1, 2003, when Columbia's crew perished during entry, 16 minutes before the scheduled landing.
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