Peggy Whitson to Sunita Williams: Astronauts who spent most time on ISS
Peggy Whitson holds the record for the most days spent in space by an astronaut. She has successfully completed multiple missions and spent a total of 665 days.
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Second on the list is Sunita Williams. She has spent 606 days in space. She completed multiple missions and has greatly contributed to ISS operations and scientific advancements.
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Jeff Williams, who has served NASA for close to three decades, has spent 534 days in space and has played a crucial role in the design, construction, and operation of the ISS.
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NASA astronaut Mark Vande Hei, who has achieved a significant milestone with one of the longest single spaceflights, has spent 523 days in space.
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American engineer and retired astronaut Scott Kelly has accumulated around 520 days in space across several missions.
Credit: NASA
American astronaut Barry Wilmore has spent over 462 days in space, contributing to several missions.
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American astronaut Mike Barratt completed two missions on the ISS, spending a total of 447 days in space.
Credit: NASA
NASA astronaut Shane Kimbrough has spent a total of 388 days in space in various space assignments.
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NASA astronaut Michael Fincke, an expert on mission operations, has spent 382 days in space across three missions.
Credit: NASA