UNITED STATES -- After over 600 days in space, Iowa astronaut Peggy Whitson still can't get enough of the view.
On Sunday, she posted a picture on her Twitter account with the caption "638 days in space and the view is still amazing! Soaking up some sunset time in the cupola…"
Whitson is on a record-setting mission. She has spent the most cumulative time in space by a NASA astronaut, at 638 days and counting.