SPACE

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Across
  1. 1. (n) the scientific study of the sun, stars and planets
  2. 4. (n) broken pieces of something larger
  3. 6. (n) trash or garbage
  4. 7. (n) an occasion when the sun disappears from view while the moon is moving between it and the earth
Down
  1. 2. (n) a device sent up into space to travel around the earth
  2. 3. (v) to follow a curved path around a planet or star
  3. 5. (n) the closest planet to Earth