It is hard to believe that the Hubble Telescope was launched 21 years ago. It has been through a few makeovers and upgrades over the years as technology has changed during her lifespan and in return she brings us magnificent views of the early universe. I think you could honestly label her a national treasure.
If you want to explore her body of work over these last 21 years then visit NASA’s http://hubblesite.org/gallery/ site where you can view and download the images taken by Hubble.
Enjoy.
