The science of space rocks—known formally as planetary science and meteoritics—is the study of the leftover debris from the birth of our solar system roughly 4.6 billion years ago. These objects act as cosmic time capsules, preserving the pristine chemical recipes of the early universe.
The terminology, composition, and immense value of these celestial fragments shape our understanding of space rocks. The Name Changes by Location
Scientists categorize space rocks primarily by where they are and how large they are: 10 Things: What’s That Space Rock? – NASA Science
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