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
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With the patches now in place, NICER is expected to resume its X-ray observations of deep space phenomena. Robert Z. Pearlman, Space.com, 16 Jan. 2025 Advancements in Space Exploration In 2025, humanity will continue experiments in deep space exploration and take a baby step toward the commercialization of outer space by forming permanent habitats on the moon through private business ventures and government initiatives. Mark Minevich, Forbes, 29 Dec. 2024 Panama recently signed an MOU to join the China-Russia moon station and to engage in deep space exploration with China. Didi Kirsten Tatlow, Newsweek, 18 Dec. 2024 These policy changes would save around $2 billion a year in NASA’s deep space budget. Ars Technica, 30 Sep. 2024 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 23 Jan. 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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