Why do we go into space? -- What do space rockets do? -- Why do astronauts feel heavy after takeoff? -- Why are rockets long and thin? -- How do spacecraft orbit Earth? -- What's it like in a space station? -- How do astronauts go on space walks? -- How do spacecraft go farther? -- How do spacecraft get to Mars? -- How do rovers drive on Mars? -- Will people go to Mars one day?
Bibliography
Includes bibliographical references and index.
Summary
Provides an introduction to how forces and motion work in space, including why astronauts feel heavy after take-off, why rockets are long and thin, and how spacecraft orbit Earth.
