Collimation aligns a telescope's parts for the sharpest images. Most telescopes need collimation at some point; reflectors need it often. Tools like laser collimators or Chashires help align the ...

If you're new to astronomy and trying to work out which telescope to buy, it can be tricky to get your head around all the technical terms. So if you've ever found yourself browsing telescopes and ...

A great value all-rounder with the added convenience of alignment by smartphone, this large yet affordable Dobsonian telescope offers sharp and immersive views of galaxies, nebulae but also planets ...