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

Audrey Velasco-Hogan via Reuters The ocean depths are nearly as mysterious as outer space. Ephrat Livni, Quartz, "Predators with virtually invisible fangs prowl the deep sea," 6 June 2019 Telecommunications, precision agriculture, financial markets, transportation, logistics—core components of America’s $20 trillion economy depend on technology based in outer space. Patrick M. Shanahan, WSJ, "It’s Time to Create an American Space Force," 30 Apr. 2019 Culture This just in: sexism now has extended past planet earth to literal outer space. Abby Gardner, Glamour, "NASA Cancels First All-Female Spacewalk Because They Don’t Have Enough Spacesuits to Fit Women," 26 Mar. 2019 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

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

14 Jun 2019

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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

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