NASA astronaut Kelly retiring after year in space

In this photo provided by NASA, Jill Biden, wife of Vice President Joe Biden, left, Mark Kelly, former NASA astronaut and Scott Kelly's identical twin, second from left, Dr. John Holdren, director of the White House Office of Science and Technology, third from left, NASA Administrator Charles Bolden, fourth from right, and Ellen Ochoa, director, NASA's Johnson Space Center, watch as Expedition 46 Commander Scott Kelly of NASA speaks at Ellington Field, Thursday, March 3, 2016, in Houston, after his return to Earth. Kelly returned to Earth on Wednesday after an unprecedented year in space for NASA, landing in barren Kazakhstan with a Russian cosmonaut who shared his whole space station journey. (Joel Kowsky/NASA via AP)

WASHINGTON (AP) — Less than two weeks after returning to Earth after nearly a year in space, astronaut Scott Kelly is hanging up his spacesuit.

NASA announced Kelly’s retirement Friday, which begins April 1. The 52-year-old Kelly holds the American record for most time in space: 520 days over four missions.

Kelly spent 340 days in orbit on the International Space Station to see how the human body holds up for long periods of time in space. His results are being compared to his twin brother, Mark, who is a retired astronaut.

NASA said Kelly will undergo periodic medical tests as part of that mission.

In a statement, Kelly said his time in space allowed him to reflect on what his next step on Earth would be. No future plans were announced.

Comments are closed.