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Most wavelengths of light never reach the ground. They are absorbed by our atmosphere. The Hubble Space Telescope, placed far above our atmosphere, is in a perfect position to observe the faint ultraviolet light from the Moon.

UV abosorption chart

SOURCES: Chandra mission website and Space Telescope Science Institute

NOTE: All distances are approximate. Boundary of the atmosphere is approximate.
The space telescope is not shown at its actual altitude above the atmosphere.
Altitude scale is logarithmic.