Hubble Mirror Under Construction
Hubble Space Telescope mirror under construction in 1984. The primary mirror measured m (8ft) in diameter and was constructed of ultra-low expansion silica glass and coated with a thin layer of aluminum to reflect visible light. Launch was set for 1986 but delayed until 1990 because of the loss of the shuttle Challenger in January of that year.
Size: 3764px × 3057px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
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