Small celestial bodies are objects in space that are smaller than planets. They include asteroids, comets, and meteoroids. These bodies can vary in size, from tiny grains of dust to larger rocks that can be several hundred kilometers across. Many of them orbit the Sun and can be found in regions like the Asteroid Belt between Mars and Jupiter. These small bodies are important for understanding the history of our solar system. For example, comets are made of ice and dust, and when they approach the Sun, they develop glowing tails. Studying these celestial objects helps scientists learn about the formation of planets and the conditions that existed billions of years ago.