Space Crossword

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Across
  1. 3. refers to anything related to the Moon
  2. 10. surrounds the outer core of the Earth
  3. 11. is the life that originates outside of Earth
  4. 12. closest inner planet to the Sun
  5. 14. is the study of life in the universe, including life on Earth and possibly of extraterrestrial life
  6. 15. is the third planet from the Sun
Down
  1. 1. is like a stretched-out circle
  2. 2. reusable spacecraft that transport people and materials to and from space
  3. 4. is a vehicle designed to propel itself by ejecting exhaust gas from one end
  4. 5. closest planets to the Sun
  5. 6. are objects that orbit the Sun and have a mass larger than the objects near it
  6. 7. is any small object that orbits a larger object
  7. 8. was once a planet, but is now a dwarf planet
  8. 9. Earth's equator divides into two ____
  9. 13. mixtures of ice and dust