The expedition will be SpaceX's second operational Crew Dragon flight to the orbiting lab, following the upcoming Crew-1 astronaut mission, which is set to launch in September. McArthur is also the wife of fellow astronaut Bob Behnken, who is now at the ISS having launched on Crew Dragon for its first-ever human spaceflight.
That SpaceX Crew Dragon flight was also the first time a private company and not a government sent astronauts into Earth's orbit; the two are scheduled to return to Earth on Sunday. Those who watched Bob Behnken carrying out his press duties leading up to the Demo-2 mission might remember him alluding to his marriage to Crew-2 crewmember McArthur.
All four Crew-2 astronauts are space veterans, with numerous missions under their belts. She was born in Honolulu but considers California her home state.
McArthur, who received her doctorate in oceanography from Scripps in 2002, traveled to space aboard the space shuttle Atlantis in 2009.
Kimbrough, a retired Army colonel, born in Texas, will be the mission's spacecraft commander.
The 42-year-old announced on Twitter that he is undergoing training at "SpaceX's futuristic facilities" in preparation for the March 2021 mission, which will blast off from Cape Canaveral in Florida. Akihiko Hoshide is from Japan's Aerospace Exploration Agency, and Thomas Pesquet, of France, is from the European Space Agency (ESA).
The Crew-2 mission will be the third spaceflight for Hoshide, who was part of the STS-124 mission aboard the Discovery in 2008 and whose most recent launch included a 124-day stay aboard the ISS in 2012.
Pesquet, the youngest member of the crew at age 42, is the only one with no mission history under the now-retired US space shuttle program. The Crew-2 astronauts will remain aboard the space station for approximately six months as expedition crew members, along with three crewmates who will launch via a Russian Soyuz spacecraft.
"The increase of the full station crew complement to seven members - over the previous six - will allow NASA to effectively double the amount of science that can be conducted in space", said the agency.