UNIVERSE

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Across
  1. 2. path an object, like a planet, takes around a star."
  2. 3. second planet from the Sun, known for being extremely hot."
  3. 5. frozen space rock that leaves a visible tail of light when it gets close to the Sun.
  4. 8. called the ""Red Planet""."
Down
  1. 1. largest planet; it has a famous 'Great Red Spot'.
  2. 2. huge group of stars, dust, and gas held together by gravity."
  3. 4. giant star at the centre of our Solar System.
  4. 6. large, bowl-shaped hole on the surface of a planet or moon."
  5. 7. natural satellite.
  6. 9. wide, flat circle of ice and rock that surrounds planets like Saturn."