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NASA successfully transitioned operations for the agency's Hubble Space Telescope to an alternate operating mode that uses one gyro, returning the spacecraft to daily science operations Friday. The telescope and its instruments are stable and functioning normally. Hubble went into safe mode May 24 due to an ongoing issue with one of its gyroscopes (gyros), which measure the telescope's slew rates and are part of the system that determines and controls the direction the telescope is pointed. The gyro had been increasingly returning faulty readings over the past six months, suspending science ...