outer space

noun

: space immediately outside the earth's atmosphere
broadly : interplanetary or interstellar space

Examples of outer space in a Sentence

a satellite in outer space Is there life in outer space?
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.
Elon Musk believes the best way to solve the difficulties of building AI data centers on earth is to move them into outer space. Chris Isidore, CNN Money, 4 Feb. 2026 Musk in a news release said that the combination would aim to pursue AI data centers in outer space. Steve Kopack, NBC news, 2 Feb. 2026 The hunt for blockbuster drugs has sent pharmaceutical companies into llama farms, outer space, and the soils of Easter Island. Damian Garde, STAT, 2 Feb. 2026 The race to deploy increasingly sophisticated systems (offense and defense) in outer space and oceans is on, primarily a contest between the United States, Russia and China. Sabbir Rangwala, Forbes.com, 30 Jan. 2026 See All Example Sentences for outer space

Word History

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of outer space was in 1842

Browse Nearby Words

Cite this Entry

“Outer space.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/outer%20space. Accessed 10 Feb. 2026.

Kids Definition

outer space

noun
: space entry 1 sense 4
especially : the region beyond the solar system

More from Merriam-Webster on outer space

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