 | Hans Wilhelm Schlegel is a German physicist, an ESA astronaut, and a veteran of two NASA Space... more » |
 | Harrison Hagan "Jack" Schmitt is an American geologist, retired NASA astronaut, university... more » |
 | Heidemarie Martha Stefanyshyn-Piper is an American Naval officer and a former NASA astronaut... more » |
.jpg/224px-Dr._Helen_Sharman_(cropped).jpg "Helen Sharman") | Helen Patricia Sharman, OBE PhD, is a British chemist who became the first Briton in space and... more » |
 | Henry Charles Gordon was an American astronaut and a colonel in the United States Air Force. He... more » |
 | Henry Warren "Hank" Hartsfield, Jr. is a retired United States Air Force officer and a former... more » |
