Man has just taken his first close look at the moon, and in a few months American spacecraft are expected to bring back samples of the moon's crust for analysis. At this turning point in lunar research, as the long history of earth-based observation gives way to first-hand experience, Patrick Moore sums up our present knowledge; Raymond Baxter discusses the significance of the new developments with Sir Bernard Lovell, Professor J.G. Davies, and Dr. J.H. Thomson at Jodrell Bank; and Patrick Moore describes the optical work done at the world's highest observatory, the Pic du Midi. Sequences in France made available by courtesy of the French Television Service