interstellar

American  

[in-ter-stel-er] / ˌɪn tərˈstɛl ər /

adjective

1. Astronomy. situated or occurring between the stars.

   interstellar dust.

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interstellar British  

/ ˌɪntəˈstɛlə /

adjective

1. conducted, or existing between two or more stars

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Etymology

Origin of interstellar

First recorded in 1620–30; inter- + stellar

Example Sentences

Here, siblings Mario and Luigi team with Princess Peach and Toad on an interstellar adventure and face off against the nefarious fire-breathing Bowser and his son.

From The Wall Street Journal • Mar. 29, 2026

For countless ages, a small chunk of ice and dust traveled alone through interstellar space, like a sealed bottle drifting across a vast cosmic sea.

From Science Daily • Feb. 11, 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

As interstellar dust clouds collapse, they eventually give rise to stars and planets.

From Science Daily • Jan. 21, 2026

He has produced machines that think and instruments that peer into the unfathomable ranges of interstellar space.

From "While the World Watched: A Birmingham Bombing Survivor Comes of Age during the Civil Rights Movement" by Carolyn Maull McKinstry