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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Even their vision of outer space seldom imparts the sense of a terrifying, unknowable vastness. Justin Chang, New Yorker, 13 Mar. 2026 Ever since that fateful 1950s day in New Jersey when Steve Spielberg's father roused him from slumber to take a late-night rural drive out to watch a spectacular shooting star show, the legendary filmmaker has been fascinated with outer space and the mysteries of the cosmos. Jeff Spry, Space.com, 13 Mar. 2026 But astronauts must fly through the Van Allen belts to reach outer space, which exposes them to harmful radiation. Denise Chow, NBC news, 10 Mar. 2026 They’re also transported to outer space and explore various planets, like a fiery volcano world, an underwater planet and a techno-land with neon, gravity-defying obstacles. Jordan Moreau, Variety, 9 Mar. 2026 See All Example Sentences for outer space

Word History

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of outer space was in 1842

Browse Nearby Words

Cite this Entry

“Outer space.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/outer%20space. Accessed 22 Mar. 2026.

Kids Definition

outer space

noun
: space entry 1 sense 4
especially : the region beyond the solar system

More from Merriam-Webster on outer space

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster