Space & Astronomy – Planets, stars, and cosmic wonders.

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