Cosmic Crossings

1234567891011121314151617181920
Across
  1. 2. The study of celestial objects, space, and the universe.
  2. 3. A powerful space telescope launched in 1990.
  3. 5. An extremely large and bright star.
  4. 9. The explosion of a massive star at the end of its life cycle.
  5. 12. A type of galaxy shaped like a flattened sphere.
  6. 13. The remnant of a massive star after a supernova.
  7. 14. The star at the center of our solar system.
  8. 16. A spiral galaxy closest to the Milky Way.
  9. 18. Related to stars.
  10. 19. A massive system of stars, gas, and dust held together by gravity
  11. 20. The spiral galaxy that contains our solar system.
Down
  1. 1. The primary fuel for nuclear fusion in stars.
  2. 4. A region of space where gravity is so strong that nothing, not even light, can escape.
  3. 6. The universe as a whole.
  4. 7. A galaxy with no specific shape.
  5. 8. The remnant of a small or medium star after it loses its outer layers.
  6. 10. A phase in a star’s life when it expands and appears red in color.
  7. 11. The early stage in the formation of a star.
  8. 15. The element produced by nuclear fusion in stars.
  9. 17. A large cloud of gas and dust in space, where stars are born.