![Picture](/uploads/5/2/1/4/52145441/61940.jpg?1433117156)
Hubble has been in orbit for almost 30 years and has had four servicing missions which happened in 1993, 1997,1999 and 2009.
Hubble's First Repair
The first repair took place in 1993, three years after Hubble was first launched into low Earth orbit. Once Hubble was launched, NASA was anxious to see the first pictures. After all that anticipation, they were horrified to see that the pictures were blurry! Hubble's mirror was off by 1/50 of the thickness of a sheet of paper. Overnight Hubble (and N.A.S.A) became a laughingstock. There were even comics announcing (wrongly) that Mr Magoo was the true inventor of the Hubble telescope. NASA astronauts went to space and made repairs by installing a corrective lens. It solved the problem and Hubble's pictures were gorgeous.
Hubble's Second Repair
The second repair was in 1997. Hubble needed in infrared camera so it could see other galaxies. There as a mission to Hubble on the spaceship Discovery, so that astronauts could make the repair. During the ten day mission, astronauts installed the new infrared camera and the multi object spectrometer which is an instrument that measures different types of light. The new spectrometer enabled Hubble see through dust and gasses to take pictures of stars in nebulae.
Hubble's Third Repair
Hubble's third repair was split into two parts. Hubble needed gyroscopes badly, which was the first part of the repair. A gyroscope is like a compass that helps point Hubble in the right direction. Three of Hubble's gyroscopes had broken and the fourth had failed. Without its gyros (short for gyroscopes) Hubble couldn't point itself in the right direction and therefore went into hibernation. The Discovery came to Hubble's rescue once again and replaced all of hubble's gyros along with giving it a new computer and other temperature control instruments. In part B the astronauts installed a new camera and new cooling system for the near infrared camera
Hubble's Fourth Repair
In Hubble's fourth repair Hubble needed a new camera and a new spectrograph . This time, the crew of the Atlantis went to space and replaced the Wide Field Camera and repaired Hubble's spectrograph (a spectrograph is something used to take pictures of different kinds of light) . This was the very last time people have seen or touched Hubble in person.
Hubble's First Repair
The first repair took place in 1993, three years after Hubble was first launched into low Earth orbit. Once Hubble was launched, NASA was anxious to see the first pictures. After all that anticipation, they were horrified to see that the pictures were blurry! Hubble's mirror was off by 1/50 of the thickness of a sheet of paper. Overnight Hubble (and N.A.S.A) became a laughingstock. There were even comics announcing (wrongly) that Mr Magoo was the true inventor of the Hubble telescope. NASA astronauts went to space and made repairs by installing a corrective lens. It solved the problem and Hubble's pictures were gorgeous.
Hubble's Second Repair
The second repair was in 1997. Hubble needed in infrared camera so it could see other galaxies. There as a mission to Hubble on the spaceship Discovery, so that astronauts could make the repair. During the ten day mission, astronauts installed the new infrared camera and the multi object spectrometer which is an instrument that measures different types of light. The new spectrometer enabled Hubble see through dust and gasses to take pictures of stars in nebulae.
Hubble's Third Repair
Hubble's third repair was split into two parts. Hubble needed gyroscopes badly, which was the first part of the repair. A gyroscope is like a compass that helps point Hubble in the right direction. Three of Hubble's gyroscopes had broken and the fourth had failed. Without its gyros (short for gyroscopes) Hubble couldn't point itself in the right direction and therefore went into hibernation. The Discovery came to Hubble's rescue once again and replaced all of hubble's gyros along with giving it a new computer and other temperature control instruments. In part B the astronauts installed a new camera and new cooling system for the near infrared camera
Hubble's Fourth Repair
In Hubble's fourth repair Hubble needed a new camera and a new spectrograph . This time, the crew of the Atlantis went to space and replaced the Wide Field Camera and repaired Hubble's spectrograph (a spectrograph is something used to take pictures of different kinds of light) . This was the very last time people have seen or touched Hubble in person.