Frederick D. Gregory
Frederick Drew Gregory is a former United States Air Force pilot, military engineer, test pilot, and NASA astronaut as well as former NASA deputy administrator. He also served briefly as NASA acting administrator in early 2005, covering the period between the departure of Sean O'Keefe and the swearing in of Michael D. Griffin.
图片: NASA · Public domain
- 状态
- 现役
- 生平
- 1941