deep space

Etymology
in his novel Triplanetary, first serialized in Amazing Stories. After deep sea.

Adjective

 * 1) Of or in the area of space beyond the gravitational influence of Earth, or outside the Solar System

Noun

 * 1) All of space beyond the gravitational influence of Earth, or outside the Solar System, or distant from stars

Translations

 * French:
 * Georgian: ღრმა კოსმოსი
 * Macedonian: вселенски простор