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NASA astronaut Jack Fischer excitedly waves to the camera during Tuesday’s spacewalk on the International Space Station (@iss). From 250 miles above our home planet, Fischer and astronaut Peggy Whitson performed a contingency spacewalk to replace a failed data relay box. During their 2 hour 46 minute spacewalk, they were also able to install a pair of antennas on station to enhance wireless communication for future spacewalks. Credit: NASA #nasa #space #spacewalk #astronauts #astropeggy #astro2fish #spacestation, #antenna #earth,
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