STS-105 Commander Scott Horowitz arrives aboard a jet to make final preparations for launch.

STS-105 Commander Scott Horowitz arrives at KSC aboard a T-38 jet to make final preparations for launch. On mission STS-105, Discovery will be transporting the Expedition Three crew and several payloads and scientific experiments to the International Space Station. The Early Ammonia Servicer (EAS) tank, which will support the thermal control subsystems until a permanent system is activated, will be attached to the Station during two spacewalks. The three-member Expedition Two crew will be returning to Earth aboard Discovery after a five-month stay on the Station. Launch of Discovery on mission STS-105 is scheduled for Aug. 9, 2001