deep space


Definition of deep space

: space well outside the earth's atmosphere and especially that part lying beyond the earth-moon system

Examples of deep space in a Sentence

Recent Examples on the Web

But a small percentage, which boast extremely high energies, have rocketed to our neck of the woods from very deep space. Mike Wall, NBC News, "High-energy 'ghost particle' traced to distant galaxy in astronomy breakthrough," 12 July 2018 The Gemini North, located in Maunakea, Hawaii, has an 8.1-meter-diameter optical/infrared telescope used for deep space exploration. David Grossman, Popular Mechanics, "Scientists Have Spotted Some of the Oldest Light in the Universe," 10 Jan. 2019 Scientists can perform many more experiments and investigations using well-equipped labs around the world than a robotic probe could conduct all by itself in deep space. Mike Wall,, "Landing Site on Asteroid Ryugu Chosen for Japan's Hayabusa2 Mission," 23 Aug. 2018 The Federation capsule, too, will have the capability to go into deep space. Eric Berger, Ars Technica, "The old guard may be turning against the Russian space program," 4 Dec. 2018 Set in deep space, the TV Nightflyers follows a disparate band of colonists who are fleeing a dying Earth and are driven to paranoia and madness by some mysterious entity. Noel Murray, The Verge, "Before Game of Thrones and Nightflyers, George R.R. Martin’s work inspired a great Outer Limits episode," 30 Nov. 2018 Some companies, such as SpaceX, also seek to send humans into deep space, including circumlunar missions and eventually landings on Mars. Eric Berger, Ars Technica, "On NASA’s birthday, a reminder that we can thank Nixon for the agency," 1 Oct. 2018 North Carolina State defensive end Bradley Chubb kept the celestial theme going with a trippy jacket-liner that resembled the endless void of deep space, fitting for a guy whose twitter handle is @astronaut. Matt Wyatt, Houston Chronicle, "First round of NFL draft supplies first-rate fashion show," 26 Apr. 2018 The collision destroys the vessel’s navigation system, then the spaceship flies through deep space, toward doom, entertained by a female artificial intelligence system named Mima. Roberta Smith, Will Heinrich, Martha Schwendener And Jason Farago, New York Times, "What to See in New York Art Galleries This Week," 29 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deep 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 deep space

circa 1952, in the meaning defined above

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Last Updated

1 Apr 2019

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Time Traveler for deep space

The first known use of deep space was circa 1952

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