Telescopes gather and focus light using precisely-shaped mirrors and lenses (or a combination of both). The larger the telescope’s main mirror or lens, the more light is gathered and the more detail ...

Modern-age telescopes have offered us a tantalizing view of what lies in the vast expanse of space, while also giving us glimpses of the universe’s past. However, making telescopes that can peek deep ...

How do I make a telescope? Did you know you can build your own telescope? All you need are two lenses and a few common household items. Depending on your crafting experience, you can complete this fun ...

For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the ...

For the first time, a flat telescope lens has been produced that represents colors accurately, offering a way to make less ...

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 ...