Astronomy Crossword Puzzle

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Across
  1. 3. The way of expressing numbers that are too big or too small to be conveniently written in decimal form
  2. 4. The two points in the year when the sun and moon are on the same or opposite sides of the Earth
  3. 6. The acronym for "Universal Location of Galactic"
  4. 10. The group of individuals who are credited with the founding of a particular organization or country
  5. 12. The two points in the year when the sun is at its most northerly or southerly point in the sky
  6. 13. The two different views of the solar system, with "Geo" referring to the Earth-centered view and "Helio" referring to the Sun-centered view
  7. 14. The three laws of planetary motion
  8. 15. The ancient structures or monuments that were used to mark the passage of time or to align with celestial events
Down
  1. 1. The two points in the year when the sun is directly above the equator
  2. 2. The patterns of stars in the sky that were used by ancient civilizations for navigation and storytelling
  3. 5. The maps of the stars and constellations in the sky
  4. 7. Phases The different appearances of the moon as it orbits the Earth
  5. 8. The three laws of motion
  6. 9. The way in which something has evolved or transformed over time
  7. 11. The unit of measurement used in the scale of the universe