h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

I think this might work better if you'd break it into two entries - one on optical telescopes and one on radio telescopes.
That way in the optical one you can discuss the types, refractor, reflector, etc.

I think the information is good, but it's a lot for one page.

I would go into a bit more detail on how different optical telescopes work, include the shapes of the glass, explain what a parabola is, and then mabye do something on the joys of buying thousands of dollars worth of eypieces and other fun telescope accessories... Clear skies
-webdesbw