Michael D. Griffin

Michael Douglas Griffin (born November 1, 1949) is an American physicist and aerospace engineer. He was the Under Secretary of Defense for Research and Engineering. Before, he was Administrator of NASA from April 13, 2005, to January 20, 2009. 

In 2007 he was included in the TIME 100, the magazine's list of the 100 most influential people.

References

Category:1949 births
Category:Living people
Category:Administrators of NASA
Category:American physicists
Category:Engineers from Maryland
Category:Politicians from Maryland
Category:Republican Party (United States) politicians