Solar System

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Across
  1. 2. 300-600 million year old on Mercury
  2. 7. Mercury Venus Earth Mars
  3. 8. A Roman Venus Name
  4. 12. Name of object that hit earth
  5. 13. Sun Cell
  6. 14. Planet Criteria; __________ Shape
  7. 16. Protoplanetary __________
  8. 18. Craters of eternal ________________
  9. 20. Type of collapse that started the formation of the solar system
  10. 22. Hottest part of Sun
  11. 24. Sun atmosphere; Color orb
  12. 26. Late ______ Bombardment
  13. 27. Type of moon that we can't see
  14. 30. Moon pulls the ocean
  15. 31. 2004 - 2015 Mercury studier
  16. 34. abbreviation; Ejection of the Sun
  17. 37. Soviet Mercury Program
  18. 39. Type of orbits planets move in
  19. 41. Past Neptune
  20. 43. "There's a little black _______ on the Sun today"
  21. 44. Where the sun's energy comes from
  22. 46. Neither a star or its remnant
  23. 49. Eclipse; Sun Moon Earth
  24. 53. Not just the moon has these
  25. 54. Martian Volcanic area
  26. 55. The type of cloud where are solar system is from
  27. 56. Type of Core Mars has
  28. 61. 3 letter abbreviation for theory of how the solar system was created
  29. 63. Dark feautre on Mars, thought to be a sea
  30. 64. Belt 30 - 50 AU
  31. 65. Grains -> _________ -> Planetesimals
  32. 70. Eclipse; Sun Earth Moon
  33. 71. Boundary between us and interstellar space
  34. 72. This super event caused the formation of our solar system
  35. 74. Mercury's favorite element
  36. 75. First Martian Period
  37. 78. Symbols for the 3 elements that primarily make up the 98% of the mass that formed the sun
  38. 79. Mercury's Continent
  39. 80. Nasa Martian Program searches for life
  40. 82. Sun Geyer
  41. 83. Cloud beyond Heliosphere
  42. 85. Something Mars once had
  43. 86. Icy Small Solar System body
  44. 88. Pluto Eris Gonggong
  45. 90. Mars Ground Shaking
  46. 92. coldest sphere of the sun
  47. 93. Compound found in molecular clouds
  48. 95. Plural Natural Satellites
  49. 96. Failed Stars Giants Jupiter and Saturn
  50. 98. Sun's protective Sphere
Down
  1. 1. The line after which volatile chemicals can be found
  2. 3. Disk beyond Pluto
  3. 4. Grand Canyon got nothing on this Valles
  4. 5. Process that signals the birth of a star
  5. 6. Largest Volcanoes in the Solar System
  6. 8. Maybe on Mercury says Phosphine
  7. 9. Magnetic _________ protect earth from solar winds
  8. 10. Damage shows up everywhere Moon Venus Mercury
  9. 11. Official Astronomy Body
  10. 15. System bound by gravity
  11. 17. Abbreviation Theory that something hit the Earth to get the moon
  12. 19. Planet forming process
  13. 21. zone that is unstable
  14. 23. a volatile chemical
  15. 25. Sun's "gen" by mass
  16. 28. Comet and Asteriod
  17. 29. Sulfuric acid on Mercury Water on Earth
  18. 32. Do not come closer than Kuiper
  19. 33. Between Mars and Jupiter
  20. 35. Volatiles like water ammonia and methane
  21. 36. Mercury Photobombs the Sun
  22. 37. Alot of on Mercury like lava
  23. 38. Mar's first in 1840
  24. 40. What prominences do
  25. 42. zone where light travels slowly
  26. 43. Center of System
  27. 45. NASA's Mercury mapper
  28. 47. Outer core
  29. 48. Type of Mercury atmosphere
  30. 50. Group that sent the Akatsuki to
  31. 51. Greek Mercury Name
  32. 52. Martian Storm
  33. 53. Type of "pre" star
  34. 57. Planet Criteria; ___________ Orbit No Neighbors
  35. 58. House effect on Mercury
  36. 59. Ancient Lunar Magma Oceans
  37. 60. Heat source of earth
  38. 62. Objects not affected by planet's gravity
  39. 66. First to mercury
  40. 67. Smooth Mercury surfaces
  41. 68. ESA and JSA Mission to Mercury
  42. 69. Currently Roving Mars
  43. 73. planet criteria; _______ around the sun
  44. 76. Covection __________ produce magnetic field on Earth
  45. 77. Much Larger than Earth
  46. 81. Neptune and Uranus
  47. 84. Comet Cloud
  48. 87. Small Mars Moon
  49. 89. Found in the shadows on the moon
  50. 91. Future Lunar Missions
  51. 94. Type of planets that form in the middle of the solar system
  52. 97. Past Lunar Missions
  53. 99. Type of world Earth is 71% water