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NASA\u2019s Hubble Space Telescope Pauses Science Due to Gyro Issue<\/h1>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n\n\n\n![\"Hubble,](\"https:\/\/smd-cms.nasa.gov\/wp-content\/uploads\/2023\/11\/hubble-in-orbit-s125e011844-1.jpg?w=2048\")
<\/figure>\nHubble orbiting more than 300 miles above Earth as seen from the space shuttle. <\/div>\nNASA<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\nNASA is working to resume science operations of the agency\u2019s Hubble Space Telescope<\/a> after it entered safe mode Nov. 23 due to an ongoing gyroscope (gyro) issue. Hubble\u2019s instruments<\/a> are stable, and the telescope is in good health.<\/p>\nThe telescope automatically entered safe mode when one of its three gyroscopes gave faulty readings. The gyros measure the telescope\u2019s turn rates and are part of the system that determines which direction the telescope is pointed<\/a>. While in safe mode, science operations are suspended, and the telescope waits for new directions from the ground.<\/p>\nHubble first went into safe mode Nov. 19. Although the operations team successfully recovered the spacecraft to resume observations the following day, the unstable gyro caused the observatory to suspend science operations once again Nov. 21. Following a successful recovery, Hubble entered safe mode again Nov. 23.<\/p>\n
The team is now running tests to characterize the issue and develop solutions. If necessary, the spacecraft can be re-configured to operate with only one gyro<\/a>. The spacecraft had six new gyros installed during the fifth and final space shuttle servicing mission in 2009<\/a>. To date, three of those gyros remain operational, including the gyro currently experiencing fluctuations. Hubble uses three gyros to maximize efficiency, but could continue to make science observations with only one gyro if required.<\/p>\nNASA anticipates Hubble will continue making groundbreaking discoveries, working with other observatories, such as the agency\u2019s James Webb Space Telescope<\/a>, throughout this decade and possibly into the next.<\/p>\nLaunched in 1990, Hubble has been observing the universe for more than 33 years. Read more about some of Hubble\u2019s greatest scientific discoveries<\/a>.<\/p>\nMedia Contacts<\/span>:<\/em><\/strong><\/p>\nClaire Andreoli<\/em><\/strong>
NASA\u2019s\u00a0<\/em><\/strong>Goddard Space Flight Center<\/em><\/strong><\/a>,\u00a0Greenbelt, MD<\/em><\/strong>
claire.andreoli@nasa.gov<\/em><\/strong><\/a><\/p>\nAlise Fisher
NASA Headquarters<\/a>, Washington, D.C.
alise.m.fisher@nasa.gov<\/a><\/em><\/strong><\/p>\n\t<\/p>\n\n\n\n\n\nShare<\/h2>\n<\/div>\n\n
<\/figure>NASA is working to resume science operations of the agency\u2019s Hubble Space Telescope<\/a> after it entered safe mode Nov. 23 due to an ongoing gyroscope (gyro) issue. Hubble\u2019s instruments<\/a> are stable, and the telescope is in good health.<\/p>\n The telescope automatically entered safe mode when one of its three gyroscopes gave faulty readings. The gyros measure the telescope\u2019s turn rates and are part of the system that determines which direction the telescope is pointed<\/a>. While in safe mode, science operations are suspended, and the telescope waits for new directions from the ground.<\/p>\n Hubble first went into safe mode Nov. 19. Although the operations team successfully recovered the spacecraft to resume observations the following day, the unstable gyro caused the observatory to suspend science operations once again Nov. 21. Following a successful recovery, Hubble entered safe mode again Nov. 23.<\/p>\n The team is now running tests to characterize the issue and develop solutions. If necessary, the spacecraft can be re-configured to operate with only one gyro<\/a>. The spacecraft had six new gyros installed during the fifth and final space shuttle servicing mission in 2009<\/a>. To date, three of those gyros remain operational, including the gyro currently experiencing fluctuations. Hubble uses three gyros to maximize efficiency, but could continue to make science observations with only one gyro if required.<\/p>\n NASA anticipates Hubble will continue making groundbreaking discoveries, working with other observatories, such as the agency\u2019s James Webb Space Telescope<\/a>, throughout this decade and possibly into the next.<\/p>\n Launched in 1990, Hubble has been observing the universe for more than 33 years. Read more about some of Hubble\u2019s greatest scientific discoveries<\/a>.<\/p>\n Media Contacts<\/span>:<\/em><\/strong><\/p>\n Claire Andreoli<\/em><\/strong> Alise Fisher
NASA\u2019s\u00a0<\/em><\/strong>Goddard Space Flight Center<\/em><\/strong><\/a>,\u00a0Greenbelt, MD<\/em><\/strong>
claire.andreoli@nasa.gov<\/em><\/strong><\/a><\/p>\n
NASA Headquarters<\/a>, Washington, D.C.
alise.m.fisher@nasa.gov<\/a><\/em><\/strong><\/p>\nShare<\/h2>\n<\/div>\n