Astrophysicist and cosmologist Neil DeGrasse Tyson has spoken out to defend Scientology in light of HBO's new documentary on the controversial church.

It's fascinating to me to see these animals create these almost magical toys to play with.

A great documentary, particularly if you're interested in music production.

The Castrati were men who were forcibly castrated at an early age in order to ensure that they would not experience the hormonal changes of puberty that lead to the lowering of the male voice.