Definition of astroengineering in English:
 astroengineering
nounˌastrəʊˌɛn(d)ʒɪˈnɪərɪŋ
- 1(Chiefly Science Fiction) large-scale structural engineering in space, especially such as involves the modification of the physical structure or configuration of a planet, a star, or an entire solar system. 
- 2The branch of engineering that deals with the design, construction, and operation of technology for use in space. 
Origin
  
1970s; earliest use found in Nature: a weekly journal of science.
Definition of astroengineering in US English:
 astroengineering
nounˌastrəʊˌɛn(d)ʒɪˈnɪərɪŋ
- 1(Chiefly Science Fiction) large-scale structural engineering in space, especially such as involves the modification of the physical structure or configuration of a planet, a star, or an entire solar system. 
- 2The branch of engineering that deals with the design, construction, and operation of technology for use in space. 
Origin
  
1970s; earliest use found in Nature: a weekly journal of science.