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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
There is no denying the beauty of the idea of turning to deep space for inexhaustible electricity.
—IEEE Spectrum, 9 May 2024
Additionally, several deep space missions had to be put in safe mode or completely shut down to prevent them from being disrupted.
—Mary Kekatos, ABC News, 10 May 2024
Spacecraft must deal with wild swings in temperature, depending on which parts of the vehicle are facing the sun, and they’re often bombarded with cosmic rays — irradiated particles streaming from the sun or deep space that can easily fry electronics that aren’t well protected.
—Tribune News Service, The Mercury News, 23 Feb. 2024
Four years after a cloud of particles from deep space cast a glittering purple glow over Earth’s night sky, the Czech government has been the first to step up and launch an investigatory mission, with South Korea nipping at their heels.
—David Rooney, The Hollywood Reporter, 21 Feb. 2024
See all Example Sentences for deep space
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'deep space.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1865, in the meaning defined above
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 14 Jun. 2024.
Kids Definition
deep space
noun
: space outside the earth's atmosphere and especially that part lying beyond the earth-moon system
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