Just a Crossword puzzle that uses your knowledge

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Across
  1. 1. what is the hottest thing in our solar system
  2. 3. its all around us but we just need to look up
  3. 6. What is the name of the fish that has a glowing light on it's head
  4. 7. nearest planet to the sun
  5. 8. what language does Benin speak
  6. 10. was originally known as a planet but now a dwarf planet
Down
  1. 2. what is the coldest planet in our solar system
  2. 4. known as Minecraft's Slenderman
  3. 5. which country believes in a eye that is supposed to give you good luck
  4. 9. has a ton of sand