Introduces end of the world scenarios, including self-destruction through nuclear war or continued environmental exploitation, humanity wiped out by a pandemic, or an asteroid or comet strike destroying Earth.

Robot Explorers is about the unmanned missions throughout the solar system, from the first lunar and planetary probes of the 60s up to the sophisticated Mars rover missions of the past decade. It describes the missions to Mercury, Venus, Jupiter, Saturn, Uranus, Neptune, several asteroids, and the Sun, as well as some of the missions planned for the future.