The Universe

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Across
  1. 2. a method used to find how far away a nearby star is
  2. 4. how much light a star gives off
  3. 5. a sudden burst of energy from the Sun.
  4. 6. the distance light travels in one year.
  5. 8. a stream of particles that moves away from the Sun.
Down
  1. 1. the gas made when the Sun produces energy.
  2. 2. the closest star to the Sun
  3. 3. The Sun gives Earth energy as light and heat.
  4. 5. a huge ball of hot gas that gives off light and heat.
  5. 7. process inside the Sun that makes energy.
  6. 8. star at the center of our solar system