Aerospace engineering is a specialized field of engineering focused on the design, development, and testing of aircraft and spacecraft. It combines principles from both aeronautical engineering, which deals with vehicles that fly within Earth's atmosphere, and astronautical engineering, which focuses on those that operate outside of it. Aerospace engineers work on various projects, including commercial airplanes, military jets, satellites, and space exploration vehicles. This discipline involves a deep understanding of physics, materials science, and computer science. Aerospace engineers use advanced technology and software to simulate and analyze the performance of their designs. They also ensure that these vehicles meet safety and regulatory standards set by organizations like the Federal Aviation Administration (FAA) and NASA.