Rating: 4 out of 5 stars
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David Hilmers
Dr. David Hilmers is a four-time shuttle astronaut who became a medical doctor after his NASA career. Dr. Hilmers has been on countless mission trips all over the world.
Dr. David Hilmers is a four-time shuttle astronaut who became a medical doctor after his NASA career. Dr. Hilmers has been on countless mission trips all over the world.