The Amazing solar system

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Across
  1. 4. The Satellite which helps study Saturn
  2. 5. The densest dwarf planet discovered to date
  3. 9. The largest moon in the solar system
  4. 10. I am a comet and was discovered on 27th March 2020
  5. 13. A program that Returns us to the moon in 2024
  6. 14. The only planet that harbours life
  7. 16. I am one the most famous Drawf plant and got demoted from behind a planet in 2006
  8. 19. At end of this year, you can see me dazzling the sky.i have been discovered in January of 2021 Who am I ?
  9. 20. The moon which has the most active volcano in the solar system
  10. 21. This Dwarf planet was once shortlisted for being the 10th planet
Down
  1. 1. The closest Star from the sun
  2. 2. Humans discovered me in 2008
  3. 3. Flattest and lightest planet in the solar system
  4. 6. A Satellite sent to unveil the protector of the inner solar system
  5. 7. The planet which has a blue sunset
  6. 8. If you spent a day on this planet it will be like a year
  7. 11. i am the only moon suspected to harbour life and have an underground ocean twice as big as the earth
  8. 12. I am a Comet and visit earth every 76 years Who am I
  9. 15. The planet which has protected the inner solar system
  10. 17. The Only moon with an atmosphere
  11. 18. The only Drwaf planet without moons