Exploring Stars

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Across
  1. 4. all of space and everything in it
  2. 5. big, hot stars with a short life
  3. 7. the star at the center of our solar system
  4. 8. small, cool stars that glow red
Down
  1. 1. how hot or cold something is
  2. 2. stars like our Sun, glowing yellow
  3. 3. lights in the sky that shine
  4. 6. how long something, like a star, exists