Former submariner and astronaut compares life in space station to life on submarines NASA astronaut Stephen Bowen’s career ranges from the deep sea to space. Photo courtesy of the U.S. Department of War. NASA astronaut Stephen Bowen finds familiarity in his current career that is reminiscent of the many submarines he served on during his Navy career. Bowen, a 1986 graduate of the Naval Academy, was chosen in 2000 to be the first submarine officer ever selected as a NASA astronaut. Between 2008 and 2011, he was part of three delivery missions to the ISS. It was on those missions that he learned the technology and environment of a space station were quite like that of a submarine. Learn more on the U.S. Department of War.