Aeronautical engineering focuses on the design and development of aircraft within the Earth's atmosphere, while aerospace engineering encompasses both aeronautical and astronautical engineering, covering vehicles that operate both within and beyond the atmosphere. The term "aerospace" reflects advancements in technology and curriculum updates that include high-speed flow dynamics. Aeronautical engineering is often viewed as somewhat outdated compared to the broader scope of aerospace engineering. The distinction is primarily in the scope of study and application, with aerospace engineering being the more modern and inclusive term. Understanding these differences is crucial for students and professionals in the field.