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.
Musk founded SpaceX in 2002, initially entirely focused on building rockets and delivering payloads to outer space. David Goldman, CNN Money, 20 May 2026 Koepp was referring, of course, to Spielberg’s multi-film preoccupation with visitors from outer space. Darryn King, Vanity Fair, 19 May 2026 Once the two halves are equipped and welded together, vacuum pumps will remove the air to create an environment similar to outer space, providing the structural support necessary to withstand external air pressure. Aman Tripathi, Interesting Engineering, 15 May 2026 But for more than 20 years, Nolan carried this vision through Gotham, through outer space, through Los Alamos. Eliana Dockterman, Time, 12 May 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 29 May. 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

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