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Experts at NASA announced yesterday that they had managed to bring the American-built Carbon Dioxide Removal Assembly (CDRA) air scrubber back online on Sunday, after it broke down on Saturday. While engineers back on Earth are still looking for the original source of the glitch, the 13 astronauts aboard the International Space Station (ISS) are perfectly safe. At no point did the Russian-built Vozdukh show any signs of malfunction. Both of the two air scrubbers have to operate flawlessly, if the station is to support the permanent six-member crew, as well as shuttle astronauts during assembly missions. According to mission managers, the probable cause was a heater in CDRA, which remained turned on, and triggered a circuit breaker. This is a safety feature of the system, but the problem has been resolved, and experts are currently looking for any other potential threats to the air scrubber. The entire system was placed in manual mode on Sunday, which means that flight engi!
neers back on Earth were required to work around the clock, to keep it running. Usually, its operations are automatic, and NASA hopes to return to that mode as soon as full diagnostics are conducted on the CDRA. At no point over the weekend did experts even consider the possibility of recalling the space shuttle Endeavor faster to Earth because of th...
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