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Astronauts add expertise, refine space station science in orbit

Written by  Sunday, 12 July 2020 04:09
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Houston TX (SPX) Jul 13, 2020
When NASA astronaut Serena M. Aunon-Chancellor tested the operation of a sextant aboard the International Space Station, she quickly realized that using the centuries-old navigation instrument while traveling more than 17,000 miles per hour in microgravity would require some adjustments. Early explorers on Earth used the instrument to navigate at sea by the stars, but their ships weren't m

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