Surface Composition

Surface composition refers to the types and distribution of materials that make up the outermost layer of a celestial body, such as a planet, moon, or asteroid. It includes elements, minerals, and other substances that are found on the surface, which can influence its appearance, reflectivity, and geological features. Studying surface composition helps scientists understand the body's history, formation, and potential resources. Techniques like spectroscopy analyze reflected light to identify surface materials without physical sampling, providing valuable insights into the object's characteristics and processes occurring on or beneath its surface.