Source: NOVA: "Galileo's Battle for the Heavens" This resource was adapted from NOVA: "Galileo's Battle for the Heavens." As early as the 1300s, eyeglasses made from convex, or outward-curving, lenses ...

For most of us who are not astronomers, the image that comes to mind when describing a reflecting telescope is of a huge instrument in its own domed-roof building on a mountain top. But a reflecting ...

Buying a telescope, like buying a car or stereo equipment, is subject to your tastes as a consumer. In other words, the choice is up to you — but Astronomy can provide some guidelines to make your ...