1) Aeronautics 2) Avionic 3) Avionics 1) Aeronautics 2) Natural philosophy 3) Physical science 4) Physics 
Astronautics (alternatively cosmonautics), is the theory and practice of navigation beyond the Earth`s atmosphere. In other words, it is the science and technology of spaceflight. The term astronautics was coined by analogy with aeronautics. As there is a certain degree of technology overlapping between the two fields, the term aerospace is often....
The science and technology of space flight.
The science of spaceflight, including the building and operation of space vehicles.
astronautics The science and technology of space flight.