Aerospace engineering is the branch of engineering that focuses on designing, building, testing, and improving aircraft, spacecraft, satellites, and other flight systems. Aerospace engineers apply principles of physics, mathematics, and engineering to develop safe, efficient, and reliable vehicles for air and space travel.

Chemical engineering is the branch of engineering that develops processes to convert raw materials into useful products through chemical and physical changes. Chemical engineers work in industries such as pharmaceuticals, energy, food production, and manufacturing, creating safe, efficient, and environmentally responsible production systems.