Patrick Moore vists Birr Castle, Eire, to discuss with the present Lord Rosse his great grandfather's remarkable achievement in constructing a huge reflector telescope and his use of it to establish the spiral nature of galaxies.
Please read the following before uploading
Do not upload anything which you do not own or are fully licensed to upload. The images should not contain any sexually explicit content, race hatred material or other offensive symbols or images. Remember: Abuse of the TV.com image system may result in you being banned from uploading images or from the entire site – so, play nice and respect the rules!