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

The tracking station is part of NASA’s Deep Space Network, operating in concert with similar facilities in California and Australia to provide global coverage as Earth’s rotation brings the planets, stars, and deep space probes in and out of view. — Stephen Clark, ArsTechnica, 24 July 2026

However, evidence of an ancient alien civilization and a frantic distress call from deep space instantly cut those celebrations short. — Paul Brett, Space.com, 10 July 2026

Glover will become the first Black man to travel to deep space, Koch the first woman and Hansen the first non-American. — Richard Tribou, The Orlando Sentinel, 9 July 2026

Nuclear batteries have been deployed in deep space missions by NASA in its Voyager probes in 1977 and Mars Curiosity rover in 2012. — Ameya Paleja, Interesting Engineering, 8 July 2026

Word History

First Known Use

1865, in the meaning defined above

Rhymes for deep space

• abase
• airspace
• apace
• backspace
• biface
• birthplace
• blackface
• boldface
• bookcase
• braincase
• briefcase
• carcase

Kids Definition

deep space

noun

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