Intergalactic Gauntlet

123456789101112
Across
  1. 2. The “Red Planet”
  2. 4. Natural satellite that orbits Earth
  3. 6. Smallest and innermost dwarf planet in our solar system
  4. 8. Closest planet to the Sun
  5. 9. First human to walk on the Moon
  6. 11. Planet known for its rings
  7. 12. Largest volcano in the solar system
Down
  1. 1. Planet that rotates on its side
  2. 3. Name of NASA’s famous space telescope
  3. 4. Name of the galaxy that contains our solar system
  4. 5. Phase when the Moon is not visible from Earth
  5. 7. Largest planet in our solar system
  6. 10. Term for a star explosion