Comets - Статья по прочим предметам

 

Тезисы:

  • Made of dust, ice, carbon dioxide, ammonia and methane, comets resemble dirty snowballs.
  • Comets become visible when sunlight reflects off this cloud.
  • You may remember them as blurry smudges in the sky.
  • As the comet gets closer to the sun, more gas is produced.
  • The gas and dust is pushed away by charged particles known as the solar wind, forming two tails.
  • Dust particles form a yellowish tail, and ionized gas makes a bluish ion tail.
  • A comet's tails, like these on comet Halley, always points away from the Sun.
  • Heads and tails.
  • Для подготовки данной работы были использованы материалы с сайта.
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