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Across 4. The tail of a comet 5. The ___________ field is the natural protection of earth from a solar wind 7. The hottest planet 8. Total solar eclipse 11. The earth's natural satellite 12. Emits light and heat 14. Turning to its axis 16. Also called the red planet 19. Inner planets are also known as ____________ planets. 20. Meteor that hits the ground 23. Scientist referred the location of the earth as _____________ zone 25. The light particle 26. Small rocks and iron in space 28. The tallest mountain in the solar system (3 Words) 29. The largest volcano in the solar system (3 Words) 32. Big rocks in space. also called planetoid 33. The shadow of the moon on earth 34. Denoted to be a planet labelled as a dwarf planet 35. A layer that gives color to the sun 38. Pale blue planet with methane gas 40. A gradual transformation of species 41. The orbital pattern of the planets in our solar system 45. The biggest planet with a great red spot 46. The farthest distance of an object in its orbit to the sun 47. First earth's artificial satellite (2 Words) 48. First man who stepped on the moon

Down 1. First man in space 2. The rotation of venus 3. The dark areas of the sun 5. Our Galaxy (2 Words) 6. Ice and dust 9. Gases that covered the planet venus 10. The farthest planet 13. The zone in which the photon reduces its radiation 15. The study of heavenly bodies 17. People who go to space 18. Father of modern astronomy (2 Words) 21. Also called orbit 22. A layer that gives light to the sun 24. The color of mars 27. The only planet in the solar system that can harbor life 30. Planet with 65 feet thick rings 31. Heavily cratered planet in the solar system 35. The zone in which the exit point of the photon 36. Does not emit light and heat 37. The death of the last individual of a species 39. First monkey in space (2 Words) 42. The rise and fall of the water level on earth's surface 43. First dog in space 44. The center of our solar system