: Over 50% of the material is new compared to the first edition, incorporating the latest planetary explorations and observations.
: Entries are designed to be scientifically rigorous for professionals while remaining accessible to undergraduate students and amateur astronomers. Encyclopedia of the Solar System, Second Edition
One key feature of the is that it contains over 700 full-color digital images and diagrams from contemporary space missions and observatories. Other notable features of this edition include: : Over 50% of the material is new