What have Apollo, Voyager, Magellan and Galileo told us about the solar system? In Our Worlds, eight planetary scientists explain what we know about their favourite world and why they find it fascinating to explore with space age techniques. Writing from a personal point of view, the distinguished researchers give a unique insight into planetary science during today's golden age of discovery. With passion and punch, the authors describe the most enticing discoveries about their subject. In this voyage of exploration you meet Mars, Venus, and the Moon, take a trip with Comet Halley, visit the moons Io, Titan, and Triton, and see asteroids close up. This is an insider's perspective written for a general readership by scientists at the cutting edge.