Mercury
Author: William Sheehan Format: Hardback Number of Pages: 176 The last of the five naked-eye planets discovered in ancient times, Mercury has long been an elusive, enigmatic world. As seen from the Earth, it never emerges far from the Sun, and astronomers in the telescopic era found it challenging to work out such basic data as its rotation period, the inclination of its axis, and whether or not it possessed an atmosphere. In this up-to-date and beautifully illustrated volume, William...