interstellar

adjective

in·​ter·​stel·​lar ˌin-tər-ˈste-lər How to pronounce interstellar (audio)
: located, taking place, or traveling among the stars especially of the Milky Way galaxy

Examples of interstellar in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Trump administration proposes terminating the Juno mission, which is the only spacecraft currently orbiting Jupiter, as well as the New Horizons probe that visited Pluto a decade ago and is now blazing a trail toward interstellar space. ArsTechnica, 11 June 2025 The next several thousand years will see the nebula disperse, according to NASA, as radiation pouring out from the central dying star pushes the material ever outward into interstellar space. Anthony Wood, Space.com, 2 June 2025 But the Voyager mission team left the others turned on to collect data about the heliosphere, as well as interstellar space. Ashley Strickland, CNN, 5 Mar. 2025 Within 23 hours, the signals will be as far from Earth as NASA’s Voyager 1, the world’s most distant spacecraft at more than 15 billion miles in interstellar space. Marcia Dunn, Los Angeles Times, 27 May 2025 See All Example Sentences for interstellar

Word History

First Known Use

1626, in the meaning defined above

Time Traveler
The first known use of interstellar was in 1626

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Cite this Entry

“Interstellar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstellar. Accessed 17 Jun. 2025.

Kids Definition

interstellar

adjective
in·​ter·​stel·​lar ˌint-ər-ˈstel-ər How to pronounce interstellar (audio)
: located or taking place among the stars
interstellar space

More from Merriam-Webster on interstellar

Last Updated: - Updated example sentences
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