deep space
Americannoun
noun
Other Word Forms
Derived Forms
Etymology
Origin of deep space
First recorded in 1950–55
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Previous work led by LMU physicist Dr. Giulia Roccetti showed that giant planets ejected from their systems may still retain some of their moons after being thrown into deep space.
From Science Daily • May 29, 2026
The £37m deal includes the station's 44 antennas, as well as the Goonhilly Lunar and Deep Space, believed to be the world's first private deep space communications network.
From BBC • May 15, 2026
Artemis III will stick in near-Earth orbit — closer to where the International Space Station sits as opposed to traveling into deep space like Artemis II.
From Los Angeles Times • Apr. 12, 2026
Unlike earlier missions, Artemis is designed with longer-term goals in mind, including future crewed landings and the development of infrastructure that could support deep space exploration.
From Salon • Apr. 11, 2026
“Maybe it’s one of those towers that tries to make contact with deep space or track weather.”
From "Beauty Queens" by Libba Bray
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.