Stars, Matter, & Energy

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Across
  1. 2. A collection of stars, dust, and gas bound togeter by gravity
  2. 3. Cosmic Energy engines that produce heat, light, & rays
  3. 4. Stars can be 1,500 times ____ than our sun
  4. 5. A large reddish star late in its life cycle
  5. 7. A small, hot, dim star that is the leftover center of an old star
Down
  1. 1. A group of stars or galaxies bound by gravity
  2. 3. Explosion of a star
  3. 6. Our sun is a _____ compared to other stars