TRIP TO SPACE!

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Across
  1. 1. - A huge collection of gas, dust and billions of stars and their solar systems held together by gravity.
  2. 3. - particles thought to exist in space that don’t absorb, reflect or emit light, and thus can’t be observed.
  3. 6. - The main theory explaining how the universe started.
  4. 8. - A system of two stars where one revolves around the other or both revolve around a common centre.
  5. 9. - Small particles of matter in space.
  6. 10. - When one celestial body blocks light from reaching another by moving between it and its light source.
Down
  1. 2. - Small, rocky objects that orbit the Sun.
  2. 4. - The gaseous outer layer of the Sun’s atmosphere.
  3. 5. - A group of stars that form a pattern.
  4. 7. - A place in space where the pull of gravity is so strong that even light can’t get out.