Aerospace engineers design and develop aircraft, spacecraft, satellites, and missiles. They apply principles of physics, mathematics, and materials science to create safe and efficient vehicles that can operate in the atmosphere and beyond. Their work involves testing prototypes and ensuring that designs meet safety and performance standards. These engineers often collaborate with other professionals, such as mechanical engineers, electrical engineers, and computer scientists, to integrate various systems within an aircraft or spacecraft. They may work for government agencies like NASA or private companies in the aerospace industry, contributing to advancements in technology and exploration.