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Hubble service missions

If astronauts have to be endangered to "turn off" the Hubble, why doesn't it actually continue to operate?

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The goal: to give Hubble a new way of seeing the universe

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Hubble - another upgrade - this time to the imaging system

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Chandra Space Telescope. Image: NASA

Is grief healthy? Now Chandra is dying

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Astronaut Michael Powell works during the third upgrade of the Hubble Space Telescope, December 1999. Photo: NASA

The "Discovery" team will replace the space telescope's computer today

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