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Showing results for interstellar space. Search instead for intermolecular space.
Synonyms

interstellar space

American  
[in-ter-stel-er spays] / ˌɪn tərˈstɛl ər ˈspeɪs /

noun

  1. Astronomy. the region of outer space between stars, especially within a galaxy such as the Milky Way.


interstellar space Scientific  
  1. See under space


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.

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Asteroids and comets preserve leftover material from the formation of planetary systems, so an object arriving from interstellar space may contain clues about conditions around another star.

From Science Daily Jul. 24, 2026

The process created carbon-rich dust resembling material that floats through interstellar space and is preserved inside comets, asteroids and meteorites.

From Science Daily Jul. 19, 2026

“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

If you were starting today, going to the moon or anywhere beyond, and especially into interstellar space, would be a job for robots and, often, exclusively robots.

From The Wall Street Journal Feb. 10, 2026

By its very nature it would have produced vast quantities of radioactive debris, but for conscientious mission profiles only in the emptiness of interplanetary or interstellar space.

From "Cosmos" by Carl Sagan

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