What is the Difference Between Aeronautical and Aerospace Engineering?

Many students in India desire to take up aeronautical and aerospace engineering but with a lack of proper knowledge they land up making a puzzling choice.
The field of Aerospace Engineering is a broader and advanced term compared to Aeronautical Engineering. Aerospace engineers develop new technologies for use in aviation, defense systems, and spacecraft. Aerospace engineering focuses on designing both aircraft and spacecraft and it is a study of all the space crafts used within and out of the earth's atmosphere while Aeronautical Engineering is the study of aircraft that operates within the earth's atmosphere.