Astronaut Whitson sets new record.

Nearly 15 years after her first space launch, NASA astronaut Peggy Whitson has now spent more time off-planet than any other American, at more than 534 days. Whitson, 57 is a biochemist who has twice commanded the international space station. “it is one of those rides that you hope never ends” Whitson also tweeted “I am so grateful for all those who helped me on each of my missions!” her current ride will last for at least five more months, because of an extension of Whitson’s mission that is projected to leave her with more than 650 days in space.