deep-space

deep-space (uncountable)

1. Alternative form of deep space
   • 1934 April, E. E. "Doc" Smith, “Triplanetary”, in Amazing Stories, volume 8, number 12, page 54, column 1:

     Bradley swore a mighty deep-space oath and braced himself against certain annihilation.

   • 2008, BioWare, Mass Effect, Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: Citadel Codex entry:

     The Citadel is an ancient deep-space station, presumably constructed by the Protheans.