Astronaut breaks US record: 521 days in space and counting Jeffrey Williams, commander of the International Space Station, marked his 521st day in orbit Wednesday, a number accumulated over four flights.
By MARCIA DUNN, AP Aerospace Writer, San Francisco Chronicle
Wed, 08/24/2016 - 9:37am
Astronaut breaks US record: 521 days in space and counting Jeffrey Williams, commander of the International Space Station, marked his 521st day in orbit Wednesday, a number accumulated over four flights.