space-bound1
/ˈspeɪsbaʊnd/adjective
Bound or limited by the properties of space.
Origin
1930s; earliest use found in American Political Science Review. From space + bound.
space-bound2
/ˈspeɪsbaʊnd/Astronautics
adjective
Heading to outer space; destined for (use in) space.
Origin
1950s; earliest use found in Idaho State Journal. From space + bound.