NASA Astronaut Jeff Williams, KD5TVQ, just back from a
mission as Expedition 48 Commander on the International Space Station, now
holds NASA's all-time record for time spent on the space station at 534 days.
Williams has made four trips to the space station, starting back in 2000, when
it was still being built. He and two other crew members returned to Earth
September 7, according to the ARRL Letter.