Space

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Across
  1. 2. The red planet
  2. 5. Force that pulls objects toward each other
  3. 7. Frozen rock from space that forms a glowing tail
Down
  1. 1. A system of billions of stars, including the Milky Way
  2. 3. The star at the center of our solar system
  3. 4. Object that travels around a planet or star
  4. 6. Natural satellite that orbits Earth