outer space

noun3

1. •
   A region outside of explored space.
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.

   • Astronauts train for years before traveling to outer space.
   • The telescope captured incredible images from outer space.
3. •
   A bluish shade of black.