Interstellar objects are celestial bodies that travel through space and originate from outside our solar system. These objects can include comets, asteroids, and other types of debris. The first confirmed interstellar object, known as Oumuamua, was detected in 2017, sparking interest in studying these mysterious visitors. Scientists study interstellar objects to learn more about the formation of solar systems and the materials that exist in the universe. By analyzing their composition and trajectory, researchers can gain insights into the conditions of other star systems and the potential for life beyond Earth.