ISS spacewalk to study microorganisms on exterior of orbitin

NASA astronauts will scrape microorganisms from the outside of the International Space Station on Thursday to study the origins of life during a live-streamed spacewalk, that will also include some repairs.

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Tracy Dyson , Barry Butch Wilmore , Matt Dominick , Matthew Dominick , Sunita Williams , Marc Elkins , Youtube , Office Of Communications , Dominick , International Space Station ,