WASHINGTON, Oct. 22, 2007 – Retired Air Force Col. Pamela A. Melroy will become the second woman to command a NASA space shuttle flight when Discovery lifts off from Cape Canaveral, Fla., tomorrow. Retired Air Force Col. Pamela A. Melroy is the second woman to command a space shuttle mission. NASA photo (Click photo for screen-resolution image);high-resolution image available. The STS-120 flight is the 23rd shuttle mission to the International Space Station, according NASA’s Web site. The mission will launch an Italian-built U.S. multi-port module for the station. The “Harmony” device will provide attachment points for European and Japanese laboratory...