outer space noun
: the region beyond the Earth's atmosphere in which there are stars and planets
: space immediately outside the earth's atmosphere; broadly : interplanetary or interstellar space
Examples of OUTER SPACE
- a satellite in outer space
- Is there life in outer space?
First Known Use of OUTER SPACE
Learn More About OUTER SPACE
Seen & Heard
What made you want to look up outer space? Please tell us where you read or heard it (including the quote, if possible).