Williams was launched from the Baikonur Cosmodrome on July 15, 2012, as part of Expedition 32/33.
Her Russian spacecraft Soyuz TMA-05M docked with the ISS for a four-month stay at the orbiting outpost on July 17, 2012.
The docking of the Soyuz spacecraft occurred at 4:51 GMT as the ISS flew over Kazakhstan at an altitude of 252 miles.
The hatchway between the Soyuz spacecraft and the ISS was opened at 7:23 GMT and Williams floated into the ISS to begin her duties as a member of the Expedition 32 crew.
On the Soyuz spacecraft, she was accompanied by Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide and Russian cosmonaut Yuri Malenchenko.
Williams served as the commander of the ISS during her stay onboard ISS Expedition 33, succeeding Gennady Padalka.
She became the commander of the International Space Station on September 17, 2012, being only the second woman to achieve the feat.
Also in September 2012, she became the first person to do a triathlon in space, which coincided with the Nautica Malibu Triathlon held in Southern California.
She used the International Space Station's own treadmill and stationary bike, and for the swimming portion of the race, she used the Advanced Resistive Exercise Device (ARED) to do weightlifting and resistance exercises that approximate swimming in microgravity.
After swimming half a mile (0.8 km), biking 18 miles (29 km), and running 4 miles (6.4 km), Williams finished with a time of one hour, 48 minutes and 33 seconds, as she reported.

She returned to Earth with fellow astronauts Yuri Malenchenko and Akihiko Hoshide on November 19, 2012, touching down in the town of Arkalyk, Kazakhstan.
Helicopters joined the search-and-recovery crew to assist them, as their capsule parachuted down some 35 kilometres (22 mi) from the planned touchdown site due to a procedural delay.
Williams was launched from the Baikonur Cosmodrome on July 15, 2012, as part of Expedition 32/33. Her Russian spacecraft Soyuz TMA-05M docked with the ISS for a four-month stay at the orbiting outpost on July 17, 2012. The docking of the Soyuz spacecraft occurred at 4:51 GMT as the ISS flew over Kazakhstan at an altitude of 252 miles. The hatchway between the Soyuz spacecraft and the ISS was opened at 7:23 GMT and Williams floated into the ISS to begin her duties as a member of the Expedition 32 crew. On the Soyuz spacecraft, she was accompanied by Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide and Russian cosmonaut Yuri Malenchenko. Williams served as the commander of the ISS during her stay onboard ISS Expedition 33, succeeding Gennady Padalka. She became the commander of the International Space Station on September 17, 2012, being only the second woman to achieve the feat. Also in September 2012, she became the first person to do a triathlon in space, which coincided with the Nautica Malibu Triathlon held in Southern California. She used the International Space Station's own treadmill and stationary bike, and for the swimming portion of the race, she used the Advanced Resistive Exercise Device (ARED) to do weightlifting and resistance exercises that approximate swimming in microgravity. After swimming half a mile (0.8 km), biking 18 miles (29 km), and running 4 miles (6.4 km), Williams finished with a time of one hour, 48 minutes and 33 seconds, as she reported.
She returned to Earth with fellow astronauts Yuri Malenchenko and Akihiko Hoshide on November 19, 2012, touching down in the town of Arkalyk, Kazakhstan. Helicopters joined the search-and-recovery crew to assist them, as their capsule parachuted down some 35 kilometres (22 mi) from the planned touchdown site due to a procedural delay.
Sunita Williams