Aviation refers to the navigation activities of aircraft in the earth's atmosphere;
Space flight refers to the navigation activities of aircraft in the outer space of the earth's atmosphere;
Aerospace
A controllable rocket in orbit.
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According to the principle of aircraft lift generation, aircraft can be divided into two categories: lighter than air aircraft and heavier than air aircraft, while spacecraft can be generally divided into unmanned spacecraft and manned spacecraft.
The sounding rocket is a tool used to detect and study the characteristics of the atmosphere and to develop and utilize atmospheric resources.Unlike the near earth atmosphere of aircraft and the space beyond the atmosphere of spacecraft, the "stage" of sounding rocket activities is to repair the atmosphere (including dense atmosphere and thin atmosphere).
According to the purpose, sounding rockets can be divided into: meteorological rockets for detecting atmospheric temperature, atmospheric pressure, atmospheric density, wind direction, wind speed and other meteorological elements, sampling rockets for collecting solid particles in the atmosphere under specific circumstances, and detecting ionospheric electron concentration and other parametersionospheric sounding Rocket, a biological test rocket to study the adaptability of organisms to high-altitude flight, and an engineering test rocket to test relevant technologies.
