Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around ... a regular curvature, so the reflector remained largely a curiosity ...

The subject of space exploration has been one of the most enigmatic and interesting topics of all time. When taught about ...

For the first eight years of its life, the 24-inch was the sole telescope at SBO, and was kept busy seven ... the long-and-narrow refractor and its replacement short-and-fat reflector. In order to ...

When I was in grade school I was fascinated by the world’s largest telescope: the 200-inch-diameter Hale Reflector on Palomar Mountain near San Diego.