outer space

noun

: space immediately outside the earth's atmosphere

broadly : interplanetary or interstellar space

Examples of outer space in a Sentence

a satellite in outer space

Is there life in outer space?

Recent Examples on the Web

Throughout outer space lie stars and galaxies that resemble creepy creatures, spooky skulls and galactic ghouls. — Mary Randolph, Scientific American, 31 Oct. 2026

Like an unassuming plant from outer space, Little Shop of Horrors had humble beginnings—but managed to blossom at a surprising rate. — Andrew Buss, Vanity Fair, 29 Oct. 2026

Continue reading … STAR WARS — America's enemies prepare to take the next major war into outer space. — FOXNews.com, 29 Oct. 2026

Its treaties and agreements focus on preserving the peaceful, safe, and sustainable use of outer space, preventing collisions, managing space debris, and ensuring responsible operations. — David Zamora, Space.com, 23 Oct. 2026

Word History

First Known Use

1842, in the meaning defined above

Rhymes for outer space

• aerospace
• anatase
• anyplace
• commonplace
• cyberspace
• database
• diabase
• diastase
• dnase
• elastase
• fireplace
• hyperspace

Kids Definition

outer space

noun

: space entry 1 sense 4

especially : the region beyond the solar system