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NASA Astronauts Fix Cosmic Ray Detector on ISS Spacewalk
Posted
December 2, 2019
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December 2, 2019
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0:53Now PlayingTwo astronauts have ventured out on a spacewalk to install new pumps on a cosmic ray detector outside the International Space Station.
Monday’s spacewalk is the third in under three weeks for the European Space Agency's Luca Parmitano and NASA's Andrew Morgan, and is the culmination of years of work to repair the Alpha Magnetic Spectrometer.
The astronauts must connect four new pumps to the spectrometer, which is crippled without proper cooling.
The two billion US dollar spectrometer has been up there hunting for antimatter and dark matter for more than eight years.
NASA compares the series of spacewalks - the most complex since the Hubble Space Telescope missions - to heart surgery.
The spectrometer was never meant for hands-on repairs like this.
Mission Control urged the spacewalkers to “take good care” of the pumps, as they headed out.
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