NASA
Nasa: Great Images in Nasa
Fascinating collection of images from NASA, chosen for their historical or aesthetic significance. Images are searchable by subject, by NASA center, and by keyword, and each is available in three sizes. With links to more information...
Space Telescope Science Institute
Hubble Space Photographs: Hst's Greatest Hits 1990 1995
Breathtaking images from the Hubble Space Telescope give a new perspective to our world.
University of Wisconsin
The Why Files: Spacy Mechanical Masterpiece
An interesting article describing repairs which were completed on the Hubble telescope in 1993 and 1997. Also contains links to pictures taken by the telescope.
Space Telescope Science Institute
Amazing Space: Hubble's Wacky Window
Go behind the scenes of the Hubble and discover the different shapes and images it provides.