Add Yahoo as a preferred source to see more of our stories on Google. Astronomy: a 40-foot telescope constructed by William Herschel, in use outdoors. Coloured etching, 18--. Wellcome Collection.

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 ...

Welcome to the Tuesday Telescope. There is a little too much darkness in this world and not enough light—a little too much pseudoscience and not enough science. We'll let other publications offer you ...