Beginning in the early days of the Space Age - well before the advent of
manned spaceflight - the United States, followed soon by other nations,
undertook an ambitious effort to study the planets of the solar system.
The remarkable fruits of this research revolutionized the public's view
of their celestial neighbors, capturing the imaginations of people from
all backgrounds like nothing else save the Apollo lunar missions. From
the first space probes to the most recent planetary rovers, they have
continually delivered impressive discoveries and reshaped our
understanding of the cosmos. Offering fascinating investigations into
this crucial chapter in space history, this collection of specially
commissioned essays from leading historians opens new vistas in our
understanding of the development of planetary science.