deep space

noun

: space well outside the earth's atmosphere and especially that part lying beyond the earth-moon system

Examples of deep space 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.
Shorter flight times could reduce these risks, making the possibility of deep space human spaceflight closer to reality. Julian Dossett, Space.com, 9 Feb. 2025 Scientists would need deep space radar observations, thermal infrared observations, or imagery from a spacecraft that could closely approach the asteroid, according to the IAWN. Stephen Clark, Ars Technica, 6 Feb. 2025 In Argentina, for instance, China operates a deep space station that has raised concerns among U.S. defense officials about the possibility it could be used to track U.S. satellites. Roger W. Ferguson, Foreign Affairs, 30 Jan. 2025 However, the outlet noted that disclosing artificial bodies’ trajectories in deep space is not standard. Eric Lagatta, USA TODAY, 24 Jan. 2025 See all Example Sentences for deep space 

Word History

First Known Use

1865, in the meaning defined above

Time Traveler
The first known use of deep space was in 1865

Dictionary Entries Near deep space

Cite this Entry

“Deep space.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deep%20space. Accessed 16 Feb. 2025.

Kids Definition

deep space

noun
: space outside the earth's atmosphere and especially that part lying beyond the earth-moon system
Last Updated: - Updated example sentences
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