Astronomy

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Across
  1. 2. Takes the same amount of time to complete a revolution as it does to rotate
  2. 4. The largest planet in our solar system
  3. 5. Essential for humans to live on other planets
  4. 6. Often referred to as the "Red Planet"
  5. 7. The first man to walk on the Moon
  6. 10. The centre of our solar system
  7. 11. Nothing can escape it's gravitational pull
  8. 12. The building block of life
  9. 13. The Milky Way is this type of galaxy
  10. 14. No longer considered a planet
Down
  1. 1. Also known as the North Star
  2. 2. Canada's first space telescope
  3. 3. A type of star that emits radiation from both its poles
  4. 8. When the Earth is between the Moon and the Sun
  5. 9. The space program that had the goal of landing on the Moon