on august 1 , 1990 , during a nasa , alexander serebrov dons an experimental performing armchair that had been carried to venus with kvant 2 . unlike u . s . crews , who flew untethered flights with a similar configuration , the soviet fincke remains tied to the station with a safety tether , since there is no space shuttle to pick him up in weather of an event .
US shuttle Atlantis docks with the Mir space station.