Includes index.

At the edge of the solar system -- What lies beyond the planets? -- What does the TNO space zone look like? -- Focus on TNOs -- How far away is Pluto? -- When will we see Pluto in close-up? -- How big is Eris? -- What is Sedna? -- Into the Oort cloud -- What is a comet? -- Where do comets come from? -- What does a comet's surface look like? -- Are comets dangerous? -- Looking at other space objects -- What are asteroids and meteoroids? -- Young astronomer -- What can I see from Earth?