174K views · 11K reactions | Meanwhile, aboard the International Space Station, astronaut Scott Kelly sent his heartfelt best wishes and congratulations to the New Horizons team after the spacecraft's flyby of Pluto earlier today. Kelly is on a one-year mission off the Earth, performing important research that will help enable human visits to other worlds in the future. #PlutoFly #YearInSpace | NASA - National Aeronautics and Space Administration | Facebook

US astronaut Scott Kelly back home after record year in space On Thursday #NASA astronaut Scott Kelly returned to the United States after nearly a year on the International Space Station. It was the longest US space mission on record. During his 340 days in space, Kelly was the subject of dozens of medical experiments and scientific studies to learn more about how the human body adjusts to weightlessness and the high-radiation environment of space. | CGTN