Andrew "Andy" Sydney Withiel Thomas is an Australian-born American aerospace engineer and a NASA astronaut.
Education
Educated Adelaide before receiving a bachelor of engineering degree in mechanical engineering (with First Class honors) from the University of Adelaide in 1973. He completed a doctorate in the same subject at the University of Adelaide in 1978.
Career
He became a U.S. citizen in December 1986, hoping to gain entry to NASA's astronaut program.Thomas was selected by NASA in March 1992 and reported to the Johnson Space Center in August 1992. In June 1995, Thomas was named as payload commander for STS-77 and flew his first flight in space on Endeavour in May 1996,and became the first Australia-born professional astronaut to enter space
Thomas completed his fourth space flight on STS-114 and has logged over 177 days in space. He is currently working issues for the Exploration Branch of the Astronaut Office.