Mot Croiser 2

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Across
  1. 4. A secret in the center of the milky way
  2. 6. A group of marvel heroes including IronMan, Hulk, etc.
  3. 7. Iron Mans operating system
  4. 8. A star's death
Down
  1. 1. A spider-boy
  2. 2. A group of planets orbiting a star
  3. 3. A big green guy from marvel
  4. 5. A supernova, but much much grater