S. David Griggs

S. David Griggs

Stanley David Griggs (September 7, 1939 – June 17, 1989) was a United States Navy officer and a NASA astronaut. He is credited with conducting the first unscheduled extra-vehicular activity of the space program during Space Shuttle mission STS-51-D. Griggs was killed when the vintage World War II training aircraft he was piloting crashed near Earle, Arkansas.

Read more about S. David Griggs:  Early Life, Navy Career, NASA Career, Awards and Honors

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    As we looked up in silence to those distant lights, we were reminded that it was a rare imagination which first taught that the stars are worlds, and had conferred a great benefit on mankind.
    —Henry David Thoreau (1817–1862)