Cool Spacewalk, Right? Get Ready for MoreISS Will Need Fixin
When astronaut Peggy Whitson pushed out of the International Space Station\u2019s airlock on Tuesday morning, she was floating into history. Stipulated, Whitson was already a badass. But this extra-vehicular activity\u2014an EVA, NASAspeak for a spacewalk\u2014was Whitson\u2019s 10th. That ties her for the American record. A PhD biochemist before she became an astronaut, Whitson has now spent more time in space outside a spacecraft than all but two other human beings.