SPACE

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Across
  1. 1. The planet we live on
  2. 4. An explosion from a dead star
  3. 6. A ball of gas
Down
  1. 2. A way to travel to space
  2. 3. A sphere that can be mad of many things
  3. 5. the next closest planet to earth
  4. 6. The ball of gas we orbit