Space

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Across
  1. 4. The star at the centre of our solar system.
  2. 6. A vehicle used to travel into space.
  3. 7. A person who travels into space.
Down
  1. 1. Earth's natural satellite.
  2. 2. Small objects that orbit the Sun.
  3. 3. The planet we live on.
  4. 5. A huge group of stars.