outer space

Definitions

1. A region outside of explored space.
   uncountable
2. Any region of space beyond limits determined with reference to boundaries of a celestial system or body, especially the region of space immediately beyond Earth's atmosphere; sometimes, space beyond Earth's solar system.
   uncountable
3. A bluish shade of black.
   uncountable

Equivalents

Examples

“Astronauts train⟳ for years before traveling to outer space.”

“The telescope captured incredible images from outer space.”

“Science fiction often imagines alien civilizations in the depths of outer space.”

“Dans added: “We talk⟳ about outer space and trips to Mars and then when you realise⟳ Nuuk is a three-hour flight from New York City, or thereabouts, it gets interesting.””

CEFR level