ISS016-E-006294 (25 Oct. 2007) --- Backdropped by a blue and white Earth, Space Shuttle Discovery approaches the International Space Station during STS-120 rendezvous and docking operations. Docking occurred at 7:40 a.m. (CDT) on Oct. 25, 2007. The Harmony node is visible in Discovery's cargo bay. A Russian spacecraft, docked to the station, is visible at left.