The Refracting Telescope The choice of a first telescope by an amateur astronomer is often a difficult decision. This site describes the basic steps in building a simple refracting telescope and includes links to other similar sites. Visit the Building a Telescope at home web site
Detecting Other Electromagnetic Radiation Non-optical telescopes offer us different views of the Cosmos. This site contains a description of how such telescopes work and includes a very interesting toy radio interferometer that you can play with. Visit the Non-optical Telescopes web site
Hubble Space Telescope The Space Telescope Science Institute presents an incredible overview of the Hubble Space Telescope from its missions operations and observations, to fantastic photos and details about its imaging equipment. Visit the Overview of the Hubble Space Telescope web site
