Jonathan's Space Report Mar 21, 1989 (No. 8) Space Shuttle Mission STS-29 ended on Mar 18 with the landing of Discovery on concrete RW 22 at Edwards. Atlantis has been mated with the STS-30 stack at Kennedy Space Center; it has been in the VAB since Mar 12 and is due to be moved to pad 39B tonight (Mar 21/22). The Soviet Union has launched the Progress-41 robot cargo tanker, and docked it with the Mir orbital station on Mar 19.