Optical telescope

Optical telescope

       A wiki link on the subject can be found at:  http://en.wikipedia.org/wiki/Optical_telescope

Poster's comments:

            Don't forget using our eyes, or even binoculars.

            If times get hard, or stay OK, the night sky offers one form of entertainment for many.

            And we can observe more than the night sky. Our imagination is the limit.

            You can even make your own telescope using reading glasses. Here's one link on the subject:  http://www.exploratorium.edu/exploring/space/activity.html There are many more links, too.