Airless bodies refer to celestial objects, such as moons or small planets, that do not have a significant atmosphere. These bodies may lack an atmosphere due to their size, composition, or distance from a star. Research on airless bodies focuses on understanding their surface features, composition, and geological processes. Scientists study the impact of meteorite strikes, the potential presence of water ice, and the effects of cosmic radiation on these bodies. Additionally, studying airless bodies can provide insights into the formation and evolution of the solar system. Examples of airless bodies include Earth's moon, Mercury, and some of the moons of the gas giants in our solar system. Research on these bodies can help us better understand the conditions and dynamics of other celestial objects in our solar system and beyond.