New Three-Man Crew Arrives at Space Station

From left: NASA astronaut Jeff Williams, Russian cosmonauts Alexei Ovchinin, and Oleg Skripochka of Roscosmos, members of the main crew of the expedition to the International Space Station (ISS), walk to report to members of the State Committee prior to the launch of a Soyuz TMA-20M at the Russian leased Baikonur cosmodrome, Kazakhstan, March 19, 2016.

A Russian Soyuz spacecraft has arrived at the International Space Station with a three-man crew, including an astronaut about to break an American record.

By the end of his six-month mission on the space station, Jeff Williams will have spent more accumulated time in space - 534 days - than any other astronaut in U.S. history.

This is Williams' third time aboard the space station.

He and Russian cosmonauts Oleg Skripochka and Alexey Ovchinin are joining a three-man crew already in the station and will carry out hundreds of scientific and biological experiments.

Russian cosmonaut Gennady Padalka holds the world record for the most days spent in space - 879.