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

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