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 Daniel K. Inouye Solar Telescope, the world's largest solar telescope, can see the sun in unprecedented detail. Here is ...

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 ...

Reflectors utilize at least two mirrors ... it was done so by experimenting with putting lenses together. Today, a telescope's optical design involves complex computer modelling and large amounts ...

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 ...

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