NASA's Scott Kelly is back on Earth after nearly a year in space

NASA astronaut Scott Kelly is back on Earth.

Kelly and Russian cosmonauts Mikhail Kornienko and Sergey Volkov landed late Monday night in the Kazakhstan desert, NASA and Russian mission control said.

Kelly could be seen pumping his fist and giving a thumbs up after being hoisted from the Russian Soyuz spacecraft that brought the trio back.

All three underwent field tests immediately after leaving the spacecraft.

Kelly has completed a nearly yearlong mission on the International Space Station, the longest any U.S. astronaut has been in space.

(CNN)