John Danny Olivas

John Daniel "Danny" Olivas is an American engineer and a former NASA astronaut. Olivas has flown on two space shuttle missions, STS-117 and STS-128, received two NASA Space Flight Medals, and has been in over 5 spacewalks throughout his career. He performed EVAs on both missions, totaling 34hrs 28min.

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รูปภาพ: NASA · Public domain