on march 1 , 1990 , during a nasa , alexander serebrov dons an experimental flying armchair that had been delivered to mir with kvant 2 . unlike u . s . spacecraft , who completed untethered travels with a similar device , the soviet cosmonaut was attached to the chair with a safety strap , since there is no orbit program to haul him up in situation of an emergency .
US shuttle Atlantis docks with the Mir space station.