Aerospace engineering is a branch of engineering that focuses on the design, development, and testing of aircraft and spacecraft. This field combines principles from mechanical engineering, materials science, and computer science to create vehicles that can operate in the Earth's atmosphere and beyond. Aerospace engineers work on everything from commercial airplanes to satellites and space shuttles. In addition to designing new technologies, aerospace engineers also analyze the performance and safety of existing systems. They use advanced tools and simulations to ensure that aircraft and spacecraft can withstand the challenges of flight, such as aerodynamics, propulsion, and structural integrity. Their work is crucial for advancements in both aviation and space exploration.