Atlantis Ready For Its Final Mission

Some of those people however, flew with Atlantis more than once. Taking them into account, 203 total seats were filled over Atlantis' 32 missions. Astronaut Jerry Ross holds the record for the most flights aboard Atlantis at five.
Astronaut Rodolfo Neri Vela who flew aboard Atlantis on STS-61-B mission in 1985 became the first and so far only Mexican to have traveled to space. ESA astronaut Dirk Frimout who flew on STS-45 as a payload specialist was the first Belgian in space. STS-46 mission specialist Claude Nicollier was the first astronaut from Switzerland. On the same flight, astronaut Franco Malerba became the first citizen of Italy to travel to space.
Astronaut Michael Massimino who flew on STS-125 mission became the first person to use Twitter in space in May 2009.
Having flown aboard Atlantis as part of the STS-132 crew in May 2010 and Discovery as part of the STS-133 crew in February/March 2011, Stephen Bowen became the first NASA astronaut to be launched on consecutive missions.