Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

Night vision relies on a type of photoreceptor in your eye called a rod, while cones (a different kind of photoreceptor) ...

Patrick Moore is joined by Professor Chris Kitchin to discuss how galaxies are formed, and to predict the fate of the Milky Way when it collides with the Andromeda galaxy in ... Photographing the ...

Patrick Moore talks about old and new telescopes with A. H. Degenhardt, and shows some of the things which the new telescopes can reveal-for instance, about the Andromeda Galaxy, whose light takes ...