[Breaking news update, posted at 11:34 p.m. ET]NASA astronaut Scott Kelly and Russian cosmonauts Mikhail Kornienko and Sergey Volkov have landed in the Kazakhstan desert after leaving the International Space Station earlier today, NASA and Russian mission control said. Kelly and Kornienko spent nearly a year in space.[Previous story, posted at 11:07 p.m. ET](CNN) — NASA astronaut Scott Kelly is on his way back to Earth. Kelly has completed a ...