Space

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Across
  1. 1. What is our galaxy called?
  2. 3. How many moons does Jupiter have?
  3. 5. How many billion years old is the Earth?
  4. 6. What is the biggest planet in our solar system?
  5. 7. What is the biggest star in out solar system?
Down
  1. 2. How do you calculate distance between stars, planets, and galaxies?
  2. 4. How many countries have successfully landed on the moon?
  3. 8. Is Pluto a planet in our solar system?