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The elderly Hubble Space Telescope has been on a rollercoaster ride of technical glitches and fixes—and it’s taken another dive. Hubble once again entered safe mode and suspended its science operations due to a lingering issue with one of its gyroscopes,on May 31. It’s the latest in a string of problems that have put a crimp on Hubble ’s work.
Hubble’s gyroscopes help point the telescope in the right direction. One of them has been glitching repeatedly. The latest incident happened on May 24. “The telescope automatically entered safe mode when one of its three gyroscopes gave faulty telemetry readings,” said NASA. The gyroscope also acted up in November and more recently in April. The Hubble team got theIt’s not all bad news. “Hubble’s instruments are stable, and the telescope is in good health,” NASA said.
A space shuttle servicing mission in 2009 replaced all of Hubble’s six gyroscopes. Currently, only three—including the glitching gyro—are still in operation. The telescope can continue functioning with only one gyroscope, but that’s not an ideal scenario. “At any given time, Hubble needs three of its six gyroscopes operating to ensure optimal efficiency,” thein an explainer. “Although the telescope can operate on only one gyroscope if needed, the regions of the sky that are on view are limited.
Hubble Space Telescope NASA ESA Space
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