puzzle

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Across
  1. 2. The force that keeps planets in orbit around the Sun.
  2. 6. The red planet.
  3. 9. A group of stars forming a pattern in the sky.
Down
  1. 1. The largest planet in our solar system.
  2. 3. The hottest planet in our solar system.
  3. 4. A celestial body that orbits a planet.
  4. 5. WAY The galaxy that contains our solar system.
  5. 6. A bright streak of light caused by a space rock entering Earth’s atmosphere.
  6. 7. The closest star to Earth.
  7. 8. The phase of the Moon when it appears completely dark.