Final answer:
Comparative planetology is the study of planets by comparing their characteristics, processes, and environments with each other. It helps us understand the similarities and differences among planets in the solar system and beyond, and gain insights into planetary formation and evolution.
Step-by-step explanation:
Comparative planetology is the study of planets by comparing their characteristics, processes, and environments with each other. It aims to understand the similarities and differences among planets in our solar system and beyond, and to gain insights into the formation and evolution of planetary systems. By analyzing data from various missions, telescopes, and spacecraft, scientists can study the physical and chemical properties of planets, their atmospheres, geology, and potential for supporting life.
For example, comparative planetology has helped us understand why terrestrial planets like Earth, Venus, and Mars are rocky and have less gas than giant planets like Jupiter and Saturn. It also allows astronomers to examine how exoplanets, which are planets orbiting other stars, can differ from those in our solar system.