1 Table of Contents: “...!... -- Prepare for Lift-off!... -- Stepping Out into the Solar System... -- Stepping Out into the Solar System...”

2 “... philosophers, astronomers, and geologists, and how NASA set out to investigate the Moon in preparation for a...”

3 “... by NASA to cut costs and send out just a single probe. Although Magellan successfully mapped Venus...”

4 “... John F. Kennedy challenged the American nation to land a man on the Moon before the decade was out...”

5 “... of the universe. Within weeks of its launch in 1990, however, the space community was shocked to find out...”