Gyroscopes are used to determine the direction in which the telescope is pointing and to maintain its orientation.
Hubble started off with six gyros on board, but only three remain operational today.
The telescope can operate with just one, but it uses all three for increased efficiency.
The Hubble Space Telescope launched in 1990.Photo: NASA
The ongoing issue with Hubbles gyroscope has triggered the telescope to enter safe mode automatically four consecutive times.
The telescope had only resumed operations on April 29, recovering from another glitchy episode.
The telescope resumed operations the next day, only to enter safe mode once again.
We are not going to pursue a re-boost right now, Clampin said.
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