Tags: Artificialsatellite, Satellite.
Progress M-55 identified by NASA as Progress 20 or 20P was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M 11F615A55 spacecraft with the serial number 355.Progress M-55 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 18:38:20 GMT on 21 December 2005. The spacecraft docked with the Pirs module at 19:46:18 GMT on 23 December.
