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Showing results for interstellar space.
Definitions

interstellar space

[in-ter-stel-er spays] / ˌɪn tərˈstɛl ər ˈspeɪs /
NOUN
deep space
Synonyms
WEAK
celestial spaces cosmic space cosmos intercosmic space intergalactic space interplanetary space metagalactic space ocean of emptiness outer space region beyond Earth's solar system the heavens the universe the void the void above
NOUN
outer space
Synonyms
STRONGEST
cosmos
WEAK
celestial spaces cosmic space deep space empty space ether space infinite space infinity intercosmic space intergalactic space interplanetary space metagalactic space ocean of emptiness pressureless space the heavens the void the void above

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“It’s quite reasonable to assume that since humanity has sent spacecraft into interstellar space, other civilizations might do the same thing,” Croft says.

From The Wall Street Journal • Apr. 23, 2026

The grains are not large enough for starlight to push them outward with sufficient force to escape into interstellar space.

From Science Daily • Jan. 12, 2026

"We think there's a two-thirds chance this comet is older than the solar system, and that it's been drifting through interstellar space ever since."

From BBC • Jul. 11, 2025

Somewhere in the cold interstellar space between our sun and the closest stars, its flight data system stopped communicating with the part of the probe that allows it to send signals back to Earth.

From Los Angeles Times • Apr. 23, 2024

The most perfect vacuum ever created by humans is not as empty as the emptiness of interstellar space.

From "A Short History of Nearly Everything" by Bill Bryson