Aerospace Engineering is a branch of engineering that focuses on the design, development, and testing of aircraft and spacecraft. It combines elements of mechanical, electrical, and materials engineering to create vehicles that can operate in the Earth's atmosphere and beyond. Professionals in this field work on everything from commercial airplanes to space exploration vehicles. The field is divided into two main branches: Aeronautical Engineering, which deals with aircraft that fly within the Earth's atmosphere, and Astronautical Engineering, which focuses on spacecraft that operate outside of it. Aerospace engineers play a crucial role in advancing technology and ensuring safety in air and space travel.