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Insulation Repair The Vault
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This photo shows STS-82 astronaut Scott Horowitz with a multi-layer insulation (MLI) repair patch. During the Second Servicing Mission, astronauts detected damage to insulation on the outside of Hubble. Astronauts working inside the shuttle created repair patches with the materials they had on hand. MLI covers 80 percent of Hubble's exterior. This insulation, coupled with supplemental electric heaters, maintains the temperature of the equipment and optics within safe limits.
(Longer Caption)


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