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

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 NRAO published a radio telescope design a few years ago for use mainly as an educational tool, the Itty Bitty Telescope. It used a satellite TV dish and LNB feeding a signal meter as a simple ...

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 ...

For the first time, a flat telescope lens has been produced that ... universe – now adopt Newton’s method of curving mirrors ...

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. What a behemoth! At the time I enjoyed ...