Veteran astronaut John "Danny" Olivas has left NASA. Olivas' last day with the agency was Tuesday, May 25.
Olivas has flown on two shuttle flights and has accumulated more than 668 hours in space. He served as a mission specialist on STS-117 in 2007 and on STS-128 in 2009 and conducted five spacewalks. Olivas logged more than 34 hours of extravehicular time in space.
"Danny's expertise in spacewalking and materials engineering will be sorely missed with his departure," Whitson said.