File:ISS-53 EVA-2 Joseph Acaba assisted crewmates inside the Quest airlock.jpg

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English: Astronaut Joe Acaba (foreground) assisted crewmates Randy Bresnik (right) and Mark Vande Hei before they began a spacewalk on Oct. 10. Bresnik and Vande Hei were performing the In-Suit Light Exercise protocol where the astronauts perform light exercise and pre-breathe pure oxygen before beginning a spacewalk. The technique helps purge nitrogen bubbles from their bodies to prevent them from experiencing “the bends” at the lower pressure inside the space suit.
Date Taken on 10 October 2017
Source https://www.flickr.com/photos/nasa2explore/23946358718/
Author NASA
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS053-E-096042.

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current17:21, 21 October 2017Thumbnail for version as of 17:21, 21 October 20174,928 × 3,280 (1.64 MB)Ras67 (talk | contribs)== {{int:filedesc}} == {{Information |Description={{en|1=Astronaut Joe Acaba (foreground) assisted crewmates Randy Bresnik (right) and Mark Vande Hei before they began a spacewalk on Oct. 10. Bresnik and Vande Hei were performing the In-Suit Light Exer...

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