Meteorite composition refers to the detailed analysis and study of the materials that make up meteorites, which are fragments of asteroids or other celestial bodies that have landed on Earth. Scientists analyze the elemental and mineral composition of meteorites to understand the origins and formation processes of these extraterrestrial objects. By studying meteorite composition, researchers can gain insights into the early history of the solar system, the processes that shaped the planets, and the potential for life beyond Earth. This field of research helps us to better understand the composition of other planetary bodies in our solar system and beyond.