--- title: Scott Kelly Breaks Record for Longest American Spaceflight description: On Thursday, Scott Kelly broke the record for the longest single spaceflight by an American astronaut after spending 216 days on the ISS. canonical: https://time.com/4093850/astronaut-scott-kelly-spacelight-record/ author: Jonathan Woods article:opinion: false article:content_tier: free article:published_time: 2015-10-30T08:33:51.000Z article:modified_time: 2026-02-22T12:13:00.534Z article:section: Science og:title: Scott Kelly Breaks Record for Longest American Spaceflight og:description: The NASA astronaut left the Earth 216 days ago. og:url: https://time.com/4093850/astronaut-scott-kelly-spacelight-record/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt6ae9869470ef8cca/69886edde20a8778dba8df85/12189311_10208085229393554_484626300693362323_o-2.jpg?branch=production&width=1079&quality=75&auto=webp&crop=16:9 og:image:width: 1079 og:image:height: 607 og:image:alt: Scott Kelly og:type: article twitter:card: summary_large_image twitter:title: Scott Kelly Breaks Record for Longest American Spaceflight twitter:description: The NASA astronaut left the Earth 216 days ago. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt6ae9869470ef8cca/69886edde20a8778dba8df85/12189311_10208085229393554_484626300693362323_o-2.jpg?branch=production&width=1079&quality=75&auto=webp&crop=16:9 ---  # Scott Kelly Breaks Record for Longest Single Spaceflight by an American Astronaut > Sponsored content. 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It reaches 40,000 subscribers with a 34.2% open rate and a 2.1% click rate as of August 2026. #### Where can I follow the energy transition as a business story? Future Proof covers climate and energy as an economic and business story rather than only an environmental one. It publishes every Friday and is free at time.com/newsletters. #### Who writes Future Proof? Justin Worland, a senior correspondent at TIME and an award-winning climate journalist, writes Future Proof. #### Is Future Proof free? Yes. Future Proof is free at time.com/newsletters.  by [Jonathan Woods](https://time.com/author/jonathan-d-woods/)  ## Jonathan Woods Oct 30, 2015 8:33 AM UTC  Astronaut Scott Kelly, re-entering the International Space Station after his spacewalk on Oct. 29, 2015. Astronaut Scott Kelly, re-entering the International Space Station after his spacewalk on Oct. 29, 2015. NASA  by [Jonathan Woods](https://time.com/author/jonathan-d-woods/)  ## Jonathan Woods Oct 30, 2015 8:33 AM UTC It was 216 days ago when NASA astronaut Scott Kelly strapped into a Soyuz rocket in the middle of the Kazakh desert to begin the single longest mission ever attempted by an American astronaut. On Thursday, he finally achieved that goal, surpassing the previous record set by Spanish-American Astronaut Michael López-Alegría, who spent 215 days in space in 2007\. (Soviet cosmonaut Valeri Polyakov holds the ultimate record of 437 continuous days dating from 1994-5.) From now until Kelly returns to Earth on March 2, 2016, he and his five roommates will be whizzing around the planet 16 times a day in their rather hi-tech home, otherwise known as the International Space Station. It’s been a big week of firsts for Kelly, who just a day before his longest mission record finished his first-ever spacewalk. As part of a yearlong series of films about the mission, [TIME’s _A Year in Space_](http://time.com/soace) Director Shaul Schwarz spoke with Kelly from NASA’s Johnson Space Center in Houston on Thursday about the spacewalk, breaking the record and missing home. “There are certain senses and things that seem like, wow that was so, so long ago,” Kelly told TIME. Peering at the third rock from the sun through an open window on his spacecraft, Kelly said at times he feels an enormous disconnect with those back home. “You definitely feel like you’re here and everyone else that’s important to you and everything that you care about and love is down there,” he said. On Monday, TIME will release the fifth installment of _A Year in Space._ The series is available to[ view here](http://time.com/space). ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4093850/astronaut-scott-kelly-spacelight-record/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4093850/astronaut-scott-kelly-spacelight-record/"},"headline":"Scott Kelly Breaks Record for Longest Single Spaceflight by an American Astronaut","datePublished":"2015-10-30T08:33:51.000Z","dateModified":"2026-02-22T12:13:00.534Z","description":"\"I kinda forgot what it's like to live down there\"","url":"https://time.com/4093850/astronaut-scott-kelly-spacelight-record/","keywords":["Space","NASA","international space station","Astronaut","American","scott kelly"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt6ae9869470ef8cca/69886edde20a8778dba8df85/12189311_10208085229393554_484626300693362323_o-2.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Jonathan Woods","jobTitle":null,"url":"https://time.com/author/jonathan-d-woods/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt6ae9869470ef8cca/69886edde20a8778dba8df85/12189311_10208085229393554_484626300693362323_o-2.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Scott Kelly","caption":"Astronaut Scott Kelly, re-entering the International Space Station after his spacewalk on Oct. 29, 2015.","creditText":"NASA","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/science/","name":"Science"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/space/","name":"Space"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4093850/astronaut-scott-kelly-spacelight-record/","name":"Scott Kelly Breaks Record for Longest Single Spaceflight by an American Astronaut"}}]}] ```