Add Yahoo as a preferred source to see more of our stories on Google. Telescope against a starry night Telescopes gather and focus light using precisely-shaped mirrors and lenses (or a combination of ...

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 ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The first telescopes, known as refracting telescopes, were built ...

Which refractor telescope is best? Space has intrigued humankind ever since we looked skyward for the first time. While it is difficult to imagine what our ancestors thought of the twinkling lights, ...