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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