Key sectors within aerospace:

Commercial aviation: passenger and cargo aircraft
Defense and military aviation: fighter jets, surveillance systems, UAVs
Space exploration: satellites, space probes, space stations, launch vehicles
Research and development: propulsion systems, materials, avionics, and aerodynamics

Core technologies include:

Advanced materials (e.g., composites, high-temperature alloys, ceramics)
Propulsion systems (jet engines, rocket engines)
Navigation and control systems
Thermal protection and structural design

Applications:

Air transportation
Satellite communications and GPS
Earth observation and climate monitoring
Space missions and planetary exploration
National defense and security

Aerospace is a multidisciplinary field combining mechanical engineering, materials science, electronics, and systems integration, driving innovation in both commercial and scientific domains.