Aeronautical Engineering Question:

Aeronautical engineering deals with vehicles which operates
in the atmosphere

Aeronautical engineering deals with vehicles operating in space.

Aeronautical engineering works on tunnel tests, analyzing
flight test data, manned space flights, planning future
space missions, spacecraft operations, designing and testing
robotic systems, developing new propulsion system, computing
optimum flight trajectories, developing communication
systems for distance space probes and designing new rockets.

Astronautical engineer includes designing power systems for
spacecraft structure, developing communications systems for
distant space probes, developing hardware skills for
operations in spacecraft, designing and testing robotic
systems, developing new propulsion systems and computing
optimum flight.