Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor by Galileo and the reflector by Newton.

Refractor telescopes use specialised lenses to gather and focus light into an image, displaying a magnified sky view. In contrast, reflector telescopes use curved mirrors to reflect light onto the ...

Just to make it that little bit more challenging, there's also three different main types of telescopes to look out for. You have the choice of refractor, reflector and catadioptric telescopes ...