Space & Astronomy

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Across
  1. 2. A rapidly spinning neutron star
  2. 4. A bright energetic galaxy core
  3. 7. A Russian space traveler
  4. 8. A device to observe distant objects
  5. 11. Related to the Sun
  6. 12. A person trained for space travel
  7. 14. The galaxy that contains our solar system
  8. 16. A distant cloud of icy objects
  9. 17. A space rock burning in Earth's atmosphere
  10. 19. The dense remnant of a collapsed star
  11. 21. A region where gravity is too strong for light to escape
  12. 22. The largest planet in the solar system
  13. 23. Part of the name of the space station
  14. 26. A famous space telescope
  15. 28. A neutron star with an extremely strong magnetic field
  16. 33. A force that pulls objects together
  17. 34. A dwarf planet in the Kuiper Belt
  18. 36. The path of a celestial body
  19. 37. A massive star's explosive death
  20. 38. Relating to Earth's moon
  21. 40. Existing between the stars
  22. 42. The hottest planet in the solar system
  23. 43. An icy body with a glowing tail
  24. 45. A private space company founded by Elon Musk
  25. 46. The nearest major galaxy to the Milky Way
  26. 47. A ripple in spacetime caused by massive objects
Down
  1. 1. U S space agency
  2. 3. A planet that rotates on its side
  3. 5. A planet outside our solar system
  4. 6. A massive system of stars and planets
  5. 9. A celestial body orbiting a star
  6. 10. A region beyond Neptune with icy bodies
  7. 13. A planet famous for its rings
  8. 15. Earth’s only natural satellite
  9. 18. A mysterious substance that makes up most of the universe’s mass
  10. 19. The farthest planet from the Sun
  11. 20. A luminous sphere of gas held by gravity
  12. 24. Known as the Red Planet
  13. 25. A cloud of gas and dust in space
  14. 27. The distance light travels in a year
  15. 29. When one celestial body blocks another
  16. 30. A small rocky body in space
  17. 31. The event that started the universe
  18. 32. A body that orbits a planet
  19. 35. The four dimensional continuum of space and time
  20. 37. A vehicle designed for space travel
  21. 39. A vehicle that propels itself into space
  22. 41. The center of our solar system
  23. 43. The universe as a whole
  24. 44. The point of no return around a black hole