An American and two Russians are preparing to return to Earth after a six-month mission aboard the International Space Station.
NASA's Jeff Williams will return as the U.S. record holder for time in orbit, logging 534 days in space over four missions.
A Soyuz capsule carrying the trio undocked from the space station Tuesday about 250 miles over eastern Mongolia and is set to land in Kazakhstan early Wednesday local time. The other crew members include Alexey Ovchinin and Oleg Skripochka.
The three conducted experiments aboard the space station. Williams set the U.S. record last month for most time spent in space. He beat the previous record set by Scott Kelly during his year in orbit.
The world record is held by Russian Gennady Padalka at 879 days in space.