The $2 billion spectrometer has been up there hunting for antimatter and dark matter for 8 ½ years, longer than anticipated. Without four new pumps for cooling, the device would be crippled and, ultimately, useless.
NASA compared the series of four spacewalks — the most complex since the Hubble Space Telescope missions — with heart bypass surgery because they are designed to bypass the old, degraded pumps.
The $2 billion spectrometer was never meant for hands-on repairs like this and was designed to last just three years. If the new plumbing holds, the instrument should last the entire life of the space station, or another five to 10 years.
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Denne historien er fra December 6, 2019-utgaven av AppleMagazine.
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AUSTRALIAN STATES BACK NATIONAL PLAN TO BAN CHILDREN YOUNGER THAN 16 FROM SOCIAL MEDIA
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