Describes the qualities needed to be part of the space program and various aspects of the training that astronaut candidates receive to prepare them for their first flight.
Describes the Apollo 11 mission to the moon, explains the need for establishing a moon base, and speculates about future situations in which the base would be used.
Details the initiation of the Hubble Space Telescope in April 1990 and the repair and servicing missions which followed; explains the telescope's role in answering questions about the universe.
Describes the landing of Sojourner on Mars, summarizes the history of information gathering missions, and speculates about future plans for explorations of the Red Planet.