Meteorites are solid pieces of debris from objects such as asteroids and comets that have reached the Earth's surface. These fragments can provide valuable information about the early solar system and the processes that shaped it. Meteorites are classified into three main types: stony, iron, and stony-iron. Scientists study meteorites to understand the composition, structure, and history of these celestial bodies, as well as their potential impact on Earth. Additionally, meteorites can help researchers learn more about the formation and evolution of our solar system.