The Hubble Space Telescope was launched in 1990 with a defective mirror, which resulted in blurry images. This led to a great deal of controversy, as the telescope had been very expensive to build and launch.

The repair mission to fix the Hubble Space Telescope's mirror cost $200 million.

The STS-103 mission, which launched in December 1999, was the mission that repaired the Hubble Space Telescope's mirror.

There were seven astronauts on the STS-103 mission.

The STS-103 mission lasted 11 days.

John Grunsfeld was the astronaut who performed the spacewalk to repair the Hubble Space Telescope's mirror.

The spacewalk to repair the Hubble Space Telescope's mirror lasted 6 hours.

The STS-103 mission was a success and the Hubble Space Telescope was repaired and able to take clear images.

The Hubble Space Telescope operated for 20 years after the STS-103 mission.

The STS-125 mission, which launched in May 2009, was the mission that retired the Hubble Space Telescope.

There were seven astronauts on the STS-125 mission.

The STS-125 mission lasted 13 days.

The STS-125 mission was a success and the Hubble Space Telescope was retired and deorbited.

The total cost of the Hubble Space Telescope program was $4 billion.

More than 15,000 scientific papers have been published using data from the Hubble Space Telescope.