outer space


Definition of outer space

: 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

North Korea’s string of 23 missile launches last year posed serious national security concerns for the U.S., including two ICBM launches that climbed to new heights in outer space — several times higher than the International Space Station. W.j. Hennigan, Time, "President Trump Wants North Korea to Give Up Nuclear Weapons. Here's Just How Hard That Would Be," 11 June 2018 The station, which has been continually inhabited by humans for nearly two decades, is presently the only destination in outer space for astronauts and cosmonauts to visit. Eric Berger, Ars Technica, "A new report questions “viability” of plan to privatize the space station," 30 July 2018 The Outer Space Treaty of 1967 — which the Kennedy administration helped work on — includes language advocating for a peaceful use of space and forbidding weapons in outer space or on celestial bodies, Logsdon said. Elizabeth Howell, Space.com, "Trump's Space Force Push Reopens Arguments About Military in Space," 20 June 2018 While Hollywood movies have brought many of the wonders of outer space seemingly within the grasp of our imagination, blazars will be another matter entirely, Halzen said. Mark Johnson, Milwaukee Journal Sentinel, "Blazing a trail: UW professor's dream leads to breakthrough in identifying origin of cosmic rays," 12 July 2018 Starships will always jump to light speed and boldly go, but the franchising of outer space by the Marvels and the Disneys has pushed our more inventive creators inward. Jason Kehe, WIRED, "Sci-Fi Invades Netflix—as They Both Invade Your Home," 9 July 2018 The Missoni woman lives for a color story—to outer space and back. Lauren Valenti, Vogue, "The New Way to Wear Pastel Eye Makeup, According to the Missoni Runway," 22 Sep. 2018 Some scientists say the boundary between Earth’s atmosphere and outer space is probably lower than the current Kármán line at 100km. Eric Berger, Ars Technica, "Rocket Report: SpaceX doubles up, European resistance, condensed Kármán," 27 July 2018 There are some that send you to outer space, others where kaleidoscopic dolphins or turtles swim around. Andrew Webster, The Verge, "Tetris Effect is a glorious love letter to Tetris," 9 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'outer space.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of outer space

1842, in the meaning defined above

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Statistics for outer space

Last Updated

5 Apr 2019

Look-up Popularity

Time Traveler for outer space

The first known use of outer space was in 1842

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More Definitions for outer space

outer space


English Language Learners Definition of outer space

: the region beyond the Earth's atmosphere in which there are stars and planets

outer space


Kids Definition of outer space

: the region beyond earth's atmosphere and especially beyond the solar system

More from Merriam-Webster on outer space

Nglish: Translation of outer space for Spanish Speakers

Comments on outer space

What made you want to look up outer space? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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