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 site where you can view and download the images taken by Hubble.