space vs interstellar space

space and interstellar space both are nouns.

Word	Noun	Adjective	Verb	Adverb
space	Yes	No	Yes	No
interstellar space	Yes	No	No	No

space (noun)	interstellar space (noun)
the unlimited expanse in which everything is located	the space between stars
(printing) a block of type without a raised letter; used for spacing between words or sentences
a blank character used to separate successive words in writing or printing
a blank area
one of the areas between or below or above the lines of a musical staff
an area reserved for some particular purpose
any location outside the Earth's atmosphere
an empty area (usually bounded in some way between things)
the interval between two times

space (verb)	interstellar space (verb)
place at intervals