Telescopes are specialist optical instruments that have been around for over 400 years and are useful for many applications including seafaring, military operations and especially stargazing. But not ...

Buying a telescope, like buying a car or stereo equipment, is subject to your tastes as a consumer. In other words, the choice is up to you — but Astronomy can provide some guidelines to make your ...

THE Yerkes Observatory, which has recently been completed and inaugurated, contains in its instrumental equipment the largest refractor in the world, the diameter of the object-glass spanning 40 ...

The Celestron Omni XLT 120 is made for the seasoned skywatcher, who is looking for that sought-after combination of high-quality build and superb views of the solar system and lunar surface. While a ...

The first telescopes, known as refracting telescopes, were built in the early 17th century by Dutch eyeglass makers. They employed a pair of lenses—one convex fitted at the end of the scope, and one ...

Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: Edwin Hubble ...

Aimed at beginners and those looking to upgrade, this 4-inch refractor is at its best with the moon and planets and comes with a lens cap that doubles as a novel smartphone holder for convenient ...