Designers of refracting telescopes figured out, for one, that by using two different kinds of glass together in the objective lens, they could cause the red and blue ends of the spectrum to ...

For stargazers and wildlife watchers, monoculars can be an effective alternative to telescopes or binoculars. Here's how they work.

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

Christmas is a great time to look for a telescope for your budding amateur astronomer. But there are some things to keep in ...

The three main types of telescopes use lenses, mirrors, or a combination of both. Refracting telescopes use lenses - combining at least two, and as many as four, pieces of glass - as their ...

View the planets and night skies from home - Heavens above! Your guide to the best telescopes for stargazing, created for all ...

Through the lens of the Hubble and James Webb Space Telescopes, scientists are zeroing in on the Hubble Constant, a vital ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

James Webb Space Telescope ... lens.” It’s that which has allowed JWST to see much farther into the cosmos than it’s natively capable of. The images were created using JWST’s NIRCam ...