Astronautics
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Astronautics is the practice of sending spacecraft beyond Earth's atmosphere into outer space. Spaceflight is one of its main applications and space science is its overarching field.
Hubble Space Telescope over Earth (during the STS-109 mission)
Aerospace
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Aerospace refers to the technology and industry involved with the atmosphere and outer space collectively. Aerospace activity is very diverse, with a multitude of commercial, industrial, and military
Astronautics
…Rosny, president of the Goncourt academy, in analogy with aeronautics. Because there is a degree of technical overlap between the two fields, the term aerospace is often used to describe both at once. In 1930, Robert Esnault-Pelterie published the first book on the new research field. The term cosmonautics…
A view of the Earth's atmosphere with the Moon beyond
Glider proposed by Cayley in an 1852 magazine.
Rocket cores under construction at a SpaceX facility.