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

For one, investors calculate the high valuations of both based on their artificial intelligence efforts, not their core businesses selling electric vehicles or lifting payloads and astronauts into outer space. — Chris Isidore, CNN Money, 22 July 2026

The intent of holding the event in Singapore is to create more of an international event, pulling in organizations working on the development of outer space from throughout Asia and other countries as well. — Thomas Coughlin, Forbes.com, 21 July 2026

Mark was the first to become captivated by a career in outer space; his twin, younger by six minutes, became an astronaut as well. — Mark Leibovich, The Atlantic, 20 July 2026

Most quantum computers have to be cooled to temperatures even colder than outer space. — Aldo Romero, The Conversation, 15 July 2026

Word History

First Known Use

1842, in the meaning defined above

Rhymes for outer space

• aerospace
• anatase
• anyplace
• commonplace
• cyberspace
• database
• diabase
• diastase
• dnase
• elastase
• fireplace
• hyperspace

Kids Definition

outer space

noun

: space entry 1 sense 4

especially : the region beyond the solar system