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.

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 ...

Lower budget models will usually be reflector or refractor telescopes, while catadioptrics are more expensive. If you’d prefer high-magnification views of planets and moons, go for either a ...