Across
- 4. The only mission to do a fly-by of all the outer planets
- 6. Largest moon of our solar system
- 8. space mission to saturn
- 9. Only moon in solar system to have a thick atmosphere and a rock surface
- 11. Which of the following is not a greenhouse gas? Methane, water vapor, Helium and Carbon Dioxide
- 12. The most abundant element in the molecular cloud
- 16. Only planet in our solar system which was first discovered theoretically
- 19. Long range comets originate from this cloud which is beyond Kuiper Belt Object
- 20. This planet has a retrograde rotation similar to Venus
- 21. Which of the following is not a Galilean moon? Phobos, Io, Ganymede and Callisto
- 22. This space mission observed collision of a comet on planet Jupiter
- 23. Closest space mission to planet Jupiter
Down
- 1. Water geyser on this moon
- 2. The following is not a dwarf planet, Pluto, Ceres, UltimaThule, Makemake, Haumea, Eris
- 3. This element gives the distinct red color to planet mars
- 5. The most common unit of temperature used by astronomers
- 7. This gas give the distinct blue color to planet Uranus and Neptune
- 10. Pluto is not a planet because it has not cleared its ___________
- 13. The only dwarf planet in the main asteroid belt
- 14. Space mission to this Galilean moon
- 15. Hottest planet in the solar system
- 17. The hypothesis in the formation of the solar system
- 18. This rocky planet has almost the same axial tilt as the earth