A retired U.S. Navy captain and astronaut from Houston, Texas...
"He's a retired U.S. Navy captain who flew combat missions in the Gulf War, is a New York Times No. 1 best-selling author, and was commander of Space Shuttle Endeavor's final mission. Here's astronaut..."
Charity: 2nd place: $10,000 to the Memorial Hermann Hospital Foundation.
|Mark appeared in the following archived game:|
. The Jeopardy!
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