--- title: Space: ISS Astronauts Do Their Third Spacewalk in Eight Days description: Two U.S. astronauts completed their third spacewalk on Sunday, to install antenna cables on the ISS for future commercial flights. canonical: https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/ author: Helen Regan article:opinion: false article:content_tier: free article:published_time: 2015-03-02T07:47:26.000Z article:modified_time: 2026-08-04T07:59:47.448Z article:section: Science og:title: ISS Astronauts Do Third Spacewalk in Eight Days og:description: They were setting up navigation systems for future space taxis. og:url: https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blte046592b8b74ecda/6987819d06f2c19e753343a8/iss-spacewalk-nasa.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 2000 og:image:height: 1125 og:image:alt: Space Station Spacewalk og:type: article twitter:card: summary_large_image twitter:title: ISS Astronauts Do Third Spacewalk in Eight Days twitter:description: They were setting up navigation systems for future space taxis. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blte046592b8b74ecda/6987819d06f2c19e753343a8/iss-spacewalk-nasa.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # ISS Astronauts Do Their Third Spacewalk in Eight Days > 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. ## Video: Astronauts Talk to Time About Life Aboard The International Space Station [Watch (HLS stream): Astronauts Talk to Time About Life Aboard The International Space Station](https://cdn.jwplayer.com/manifests/TNgMmJJR.m3u8) (9:38)  _Published 2014-07-09. Astronauts Talk About Life Aboard The International Space Station_ by [Helen Regan](https://time.com/author/helen-regan/) ## Helen Regan Mar 2, 2015 7:47 AM UTC  In this image from NASA television astronaut Terry Virts is seen during the third spacewalk outside the International Space Station March 1, 2015. In this image from NASA television astronaut Terry Virts is seen during the third spacewalk outside the International Space Station March 1, 2015. NASA-TV/AP by [Helen Regan](https://time.com/author/helen-regan/) ## Helen Regan Mar 2, 2015 7:47 AM UTC Two U.S. astronauts left the International Space Station on Sunday for a [spacewalk](http://www.reuters.com/article/2015/03/01/us-space-spacewalk-idUSKBN0LX1E420150301) — the third time they had left the orbiting station in just over a week. This time, station commander Barry “Butch” Wilmore and flight engineer Terry Virts were preparing berthing docks for space taxis being developed by Boeing and SpaceX, reports Reuters. Their job was to rig more than 122 meters of cables for two sets of antennas that the new vehicles will use as navigation tools before they dock at the station. The mission was completed after just 5.5 hours, less than the seven hours originally planned on. After the spacewalk, Virts found a small amount of water inside his helmet but said it didn’t pose a risk to his safety. \[[Reuters](http://www.reuters.com/article/2015/03/01/us-space-spacewalk-idUSKBN0LX1E420150301)\] ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/"},"headline":"ISS Astronauts Do Their Third Spacewalk in Eight Days","datePublished":"2015-03-02T07:47:26.000Z","dateModified":"2026-08-04T07:59:47.448Z","description":"They were helping to set up antenna that future space taxis will use to dock with the ISS","url":"https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/","keywords":["Space","Water","astronauts","international space station"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blte046592b8b74ecda/6987819d06f2c19e753343a8/iss-spacewalk-nasa.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Helen Regan","jobTitle":null,"url":"https://time.com/author/helen-regan/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blte046592b8b74ecda/6987819d06f2c19e753343a8/iss-spacewalk-nasa.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Space Station Spacewalk","caption":"In this image from NASA television astronaut Terry Virts is seen during the third spacewalk outside the International Space Station March 1, 2015.","creditText":"NASA-TV/AP","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/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/","name":"ISS Astronauts Do Their Third Spacewalk in Eight Days"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"Astronauts Talk to Time About Life Aboard The International Space Station","description":"Astronauts Talk About Life Aboard The International Space Station","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/TNgMmJJR/poster.jpg?width=720","uploadDate":"2014-07-09T19:03:44.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/TNgMmJJR.m3u8","embedUrl":"https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/","duration":"PT9M38S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/3727883/astronauts-iss-spacewalk-terry-virts-barry-wilmore/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```