See how telescopes capture the cosmos. ExtremeTech explains the science behind lenses and space exploration. Start exploring ...

There are three main types of telescope and each has different advantages, so we've explained each one below - so you know what to look out for in your next scope. Alternatively, you can check out ...

Discover the best telescopes for an unrivaled view of the cosmos — just in time for Black Friday savings. A telescope opens up a world of discovery, bringing the beauty and mysteries of the ...

There are three basic types of telescopes: reflectors, refractors, and Schmidt-Cassegrain telescopes. Each type has spin-offs. Refractor telescopes gather light with the objective lens ...

Over the quarter century I’ve been writing this column, I’ve been flabbergasted by the advances in telescopes for backyard ...

This type of telescope uses ring-shaped 'glancing' mirrors ... We've already had them on Earth, a 3-meter liquid mirror telescope NASA built near Alamogordo, and a different one in Canada more ...