the.com/deep space

The part of the universe with no walls, no air, and no apologies.

means The vast near-empty regions far beyond a planet's atmosphere and its star's immediate influence, where gravity is weak and matter is sparse.

from A straightforward compound rather than a borrowing — 'deep' carrying its old sense of extending far down or far out, paired with 'space' once astronomers and then rocket engineers needed to distinguish the thin volume just above the atmosphere from the much vaster emptiness beyond a planet's or even a solar system's reach. The phrase hardened into common use through 20th-century spaceflight and science fiction, where it became shorthand for the truly distant, unprotected void past any safe harbor.

definition
Beyond Earth's orbit, past the Moon's neighborhood
temperature
Hovers near absolute zero, minus 270 Celsius
silence
No medium for sound, so nothing ever screams
scale
Voyager 1 still hasn't left the solar neighborhood
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