Goldstone Observatory is a planetary radar facility located in the Mojave Desert in California, United States. It is operated by NASA's Jet Propulsion Laboratory and is primarily used for studying the characteristics and trajectories of near-Earth asteroids and other objects in the solar system. The observatory uses radar imaging techniques to gather data on these objects, helping to improve our understanding of their composition, size, and potential impact hazards. Goldstone Observatory also plays a key role in tracking and monitoring space missions, such as the Mars rovers and various spacecraft exploring our solar system.