Space is covered in encyclopedic detail, with a special 32-page section providing hundreds of extra facts.

Part 1 Universe: what is the universe?; scale of the universe; life story of the universe. Part 2 Galaxies: what is a galaxy?; clusters and superclusters; the Milky Way; the local arm. Part 3 Stars: what is a star?; star birth; life cycle of a star; death of massive stars; stellar classification; brightness. Part 4 Space from Earth: above our heads; special effects; constellations; cataloguing stars; the zodiac; near or far?; the northern sky; the southern sky. Part 5 Solar system: what is the solar system?; solar gravity; the Sun; solar energy and influence. Part 6 Planets: Mercury; Venus; Earth; Earth's moon; Mars; Jupiter; Saturn; Uranus; Neptune; Pluto. Part 7 Small objects: comets; meteors; asteroids. Part 8 Studying space: information from space; optical telescopes; radio astronomy; images of space; observatories; telescopes in space; rockets; fly-bys; landers; working in space. Part 9 Space history: milestones in astronomy; space missions 1; space missions 2. Part 10 Space facts: formation of the universe; measuring the universe; galaxies; stars; stellar worlds; solar systems; planets and moons; minor members of the solar system; sights in the sky; life in the universe; travelling into space; space probes; telescopes in orbit; Earth-based observations; humans in space; space stations.