Hubble image archive
Working on Hubble's Main Mirror (1990)
Workers study Hubble's main, eight-foot (2.4 m) mirror. Hubble, like all telescopes, plays a kind of pinball game with light to force it to go where scientists need it to go. When light enters Hubble, it reflects off the main mirror and strikes a second, smaller mirror. The light...
- Date
- Apr 24, 1990
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-3816-image
Workers study Hubble's main, eight-foot (2.4 m) mirror. Hubble, like all telescopes, plays a kind of pinball game with light to force it to go where scientists need it to go. When light enters Hubble, it reflects off the main mirror and strikes a second, smaller mirror. The light bounces back again, this time through a two-foot (0.6 m) hole in the center of the main mirror, beyond which Hubble’s science instruments wait to capture it. In this photo, the hole is covered up.
Credits
NASA
Downloads
Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov