Key Points
Nasa's Hubble Space Telescope entered safe mode on May 24, suspending science operations due to an ongoing gyroscope (gyro) issue...
The telescope's instruments remain stable, and its overall health is good..
The telescope automatically entered safe mode when one of its three gyroscopes gave faulty telemetry readings..
The telescope had six new gyroscopes installed during its fifth and final space shuttle servicing mission in 2009, and three of those remain operational.. ..
By providing precise measurements of the telescope's rotational speed and orientation, the gyroscopes enable fine adjustments to the telescope's position...
