Dr. Tracy E. Caldwell
Born August 14, 1969 in Arcadia, California. In 1999, Dr. Caldwell was first assigned to the Astronaut Office ISS Operations Branch as a Russian Crusader, participating in the testing and integration of Russian hardware and software products developed for ISS. Dr. Caldwell has logged over 305 hours in space having completed her first space flight on STS-118 (August 8-21) in 2007.
Sources:
- Dr. Tracy E. Caldwell – http://www.jsc.nasa.gov/Bios/htmlbios/caldwell.html