The Galaxy

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Across
  1. 5. A large cloud of gas and dust in space, often a nursery for new stars
  2. 7. The phase of the moon when it is completely illuminated
  3. 13. A group of stars forming a recognizable pattern
  4. 14. A rocky object that orbits the Sun, smaller than a planet
  5. 18. The closest star to Earth
  6. 19. The planet known for its ring system
  7. 20. A region of space with gravity so strong that not even light can escape
  8. 21. The second largest moon in the Solar System, orbiting Saturn
  9. 22. dying star that collapses into a dense core
  10. 23. The galaxy containing our Solar System
  11. 24. A star that suddenly increases in brightness before fading
  12. 25. An instrument used to view distant stars and planets
  13. 26. force keeping planets in orbit
Down
  1. 1. The bright object sometimes seen before sunrise or after sunset
  2. 2. A dwarf planet located in the Kuiper Belt
  3. 3. The point directly above an observer in the sky
  4. 4. largest planet in our Solar System
  5. 6. The process by which a star produces energy through nuclear reactions
  6. 8. A system of millions or billions of stars, along with gas and dust, held together by gravity
  7. 9. The second planet from the Sun, known for its thick atmosphere
  8. 10. Earth's natural satellite
  9. 11. The planet known as the Red Planet
  10. 12. The smallest planet in our Solar System
  11. 13. A space body composed mostly of ice and dust, with a glowing tail
  12. 14. The science of celestial objects, space, and the physical universe
  13. 15. The galaxy type shaped like a flat disk
  14. 16. The outermost layer of a star's atmosphere
  15. 17. A glowing streak of light caused by a meteoroid entering Earth's atmosphere