Intro to Space Vocabulary Cross Word Puzzle

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Across
  1. 1. A continuum of all electromagnetic waves arranged according to frequency and wavelength, from radio waves to gamma radiation
  2. 3. A person trained to be part of a spacecraft crew
  3. 5. A galaxy with a bulge in the center and very distinct long arms winding around the center
  4. 8. Objects, such as planets, moons, and stars, that are located in space
  5. 10. Streaming arcs of millions of stars swirling around the center of a spiral-shaped galaxy
  6. 12. A galaxy with very little symmetry that does not fit into any category
  7. 16. A complex system of garments that allows an astronaut to work safely outside a spacecraft
  8. 17. The galaxy in which Earth and the Sun are located
  9. 18. Rotation center of a galaxy
  10. 19. The management of the resources of a community, country, etc., especially with a view to its productivity
  11. 20. The quality in a person or society that arises from arts, manners, and scholarly pursuits
Down
  1. 2. A galaxy with a long oval shape, a bright center, no apparent internal structure or spiral arms, and very little dust or gas
  2. 4. A unit of length equal to the distance that light travels through space in one year
  3. 6. A large grouping of stars in space
  4. 7. A large celestial body that revolves around a star in a solar system
  5. 9. All of space and the matter space contains
  6. 11. A celestial body consisting of a mass of gas held together by its own gravity in which the energy is generated by nuclear reactions in its interior
  7. 13. A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it
  8. 14. A measure of how far apart two objects are
  9. 15. The investigation of physical conditions in space and on stars, planets, and other celestial bodies through the use of satellites, space probes, or spacecraft with human crews