Earth and Space

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Across
  1. 3. / The coldest planet rotating around the sun
  2. 4. / The planet that rotates on its side
  3. 7. / The circumstance where different colours are shown in the sky and usually occur in the northern hemisphere
  4. 10. / In this stage the process of helium fusing into carbon occurs in the core of the star
  5. 11. / When the moon blocks the sunlight emitting from a star
  6. 12. / The stage that stars go through which consists of hydrogen fusing to create helium
  7. 13. / The star has enough mass built up from other stages to explode
  8. 14. / The nucleus is cold but when coming near the sun, the nucleus becomes hot and releases gases and dust
Down
  1. 1. / Used to calculate the distance light travels
  2. 2. / The theory which is said to have created our planet through a colossal explosion
  3. 5. / When planets rotate around a star
  4. 6. / Where a multitude of stars, gas and dust are located
  5. 8. / An object which floats around in the atmosphere without burning up and is made out of rocks
  6. 9. / The planet that takes the shortest time to orbit the sun