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

What happens to your body after a year in space? 🧬 NASA - National Aeronautics and Space Administration’s Twin Study followed astronaut NASA Astronaut Scott Kelly during his year on the ISS while his identical twin, Captain Mark Kelly, stayed on Earth. Led by geneticist Dr. Chris Mason, the study revealed thousands of biological changes, from gene activity to DNA repair. Most returned to normal after landing, but some lasted for months. These insights are key to understanding how space affects