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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
With its powerful radar, the complex silently tracks deep space objects such as debris and satellites, but, more importantly, is on constant alert for nuclear missile attacks from bad actors.
—Jim Clash, Forbes, 31 Oct. 2024
Then, wait until a gravitational wave from deep space passes by.
—Charlie Wood, Quanta Magazine, 30 Oct. 2024
The quiet zone is needed to help radio telescopes detect the faintest signals from deep space.
—Michael Kan, PCMAG, 28 Oct. 2024
Isaacman, who funded the mission with SpaceX, will also lead the crew in testing out SpaceX technology that could be pivotal for future deep space exploration.
—Eric Lagatta, USA TODAY, 11 Sep. 2024
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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 22 Nov. 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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