This unit gives students a feeling of their place as members of not only their local communities, but also of the Earth community, the solar system, and the universe. Students are presented with a hypothetical situation in which an asteroid is predicted to pass very close to Earth. Students are asked to prepare booklets for their communities that discusses some possible hazards from outer space and the benefits of living in our solar system. Students begin by putting the scale of the solar system into perspective and learning how our solar system formed. Students then examine the relationship between the Earth and Moon and the Earth and Sun. Students investigate how an asteroid collision would affect their community. Finally, students examine Earth’s place within the Milky Way galaxy. By the end of the unit, students understand the history and size of our planetary community and how processes and events that occur within the solar system influence the Earth and what the chances are of those events happening.