Space ShuttleNASA launches Space Shuttle Discovery on the 86th shuttle flight, a 12-day mission to deploy a spectroscopy experiment and practice spacewalking construction techniques vital to the upcoming early missions to build the International Space Station. Aboard Discovery for her 23rd flight are Commander Curtis Brown, Pilot Kent Rominger, mission specialists Jan Davis, Robert Curbeam and Stephen Robinson, and payload specialist Bjarni Tryggvason.