Aeronautics is the science or art involved with the study, design, and manufacturing of air flight-capable machines, and the techniques of operating aircraft and rockets within the atmosphere. The British Royal Aeronautical Society identifies the aspects of "aeronautical Art, Science and Engineering" and "The profession of Aeronautics ."
Space Shuttle Atlantis on a Shuttle Carrier Aircraft
Designs for flying machines by Leonardo da Vinci, c. 1490
Montgolfier brothers flight, 1784
Lilienthal in mid-flight, Berlin c. 1895
Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere or through the vacuum of outer space. This can be achieved by generating aerodynamic lift associated with gliding or propulsive thrust, aerostatically using buoyancy, or by ballistic movement.
Natural flight by a brown pelican
Human-engineered flight: a Royal Jordanian Airlines Boeing 787
An airship flies because the upward force, from air displacement, is equal to or greater than the force of gravity
Female mallard duck