We take a look at why the counterbalance is used by some telescopes but not all

We take a look at why the counterbalance is used by some telescopes but not all
We take a look at what astronomer Isaac Newton was able to see through his homemade telescope back in 1668
Earth and Venus were twins when they were younger, so what turned the second planet from the Sun bad? Find out in issue 32 – out now!
To celebrate BBC Stargazing LIVE, we’ll be posting a number of astronomy-themed articles and competitions this week, beginning with a guide to understanding telescopes.