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Astronauts Switch Roles Today from Scientists to Plumbers

Published by Klaus Schmidt on Tue Apr 24, 2018 9:40 pm via: NASA
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The six Expedition 55 crew members are not only space scientists but also space plumbers who periodically work on the International Space Station’s toilet. Aside from today’s science and bathroom work, the crew also installed computer networking gear and inspected spacewalk equipment.

Drew Feustel, who began his career as an auto mechanic, studied to become a geophysicist and finally trained as a NASA astronaut, became a space plumber this morning. U.S. Navy Captain Scott Tingle of NASA brought Feustel up to speed on maintenance operations inside the bathroom, also known as the Waste and Hygiene Compartment, before updating its software and firmware.

NASA astronaut Ricky Arnold, who is on his second space mission, first as a space shuttle mission specialist and now as a station flight engineer, replaced a failed device inside the Human Research Facility-2 (HRF-2) today. The spare Rack Interface Controller controls various systems inside the HRF-2 which evaluates the physiological, behavioral, and chemical changes that take place in humans living in space.

Next, Feustel moved on to the Protein Crystal Growth-9 experiment with assistance from Japanese astronaut Norishige Kanai. The duo photographed and videotaped crystal samples grown for the middle and high school student-based research.

Feustel wrapped up his day installing firewalls, power supplies and cables providing additional computer security aboard the orbital lab. Kanai inspected spacewalk tethers and tools for damage before wearing an arm monitor that will analyze how microgravity has altered his circadian rhythms.

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