STS-93 Commander Eileen Collins pictured is the first woman to serve as a shuttle mission commander.

STS-93 Commander Eileen Collins (pictured) is the first woman to serve as a shuttle mission commander. She was the first woman pilot of a Space Shuttle, on mission STS-63, and also served as pilot on mission STS-84. Collins will command the crew of STS-93 on a five-day mission aboard Space Shuttle Columbia on its newly scheduled launch date July 9. The other STS-93 crew members are Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley, Catherine G. Coleman and Michel Tognini of France, representing the Centre National d'Etudes Spatiales (CNES). The primary mission of STS-93 is the deployment of the Chandra X-ray Observatory. Formerly called the Advanced X-ray Astrophysics Facility, Chandra comprises three major elements: the spacecraft, the science instrument module (SIM), and the world's most powerful X-ray telescope. Chandra will allow scientists from around the world to see previously invisible black holes and high-temperature gas clouds, giving the observatory the potential to rewrite the books on the structure and evolution of our universe