Take your seats for the greatest tour ever - one that encompasses no less than the whole of the Universe. En route, we stop off to gaze at 100 amazing sights - from asteroids to zodiacal dust and from orbit around the Earth to beyond the most distant galaxies. We start right here on Earth, with your tour guides: the three intrepid cosmic voyagers Patrick Moore, Brian May and Chris Lintott. They explain the sights - what they are, and how they fit into the astronomical zoo of familiar and curious objects and phenomena - and convey their own personal enthusiasm for each marvel you encounter. The images present the extraordinary beauty of the Universe as seen through the eyes of the biggest and best telescopes on Earth and in space, and occasionally in the backyards of expert amateur observers.