comets

Comets are sometimes called **dirty snowballs** or "icy mudballs".

A comet looks like a fuzzy, white ball with one or more fat, white tails trailing behind it. A comet has three main parts. It has a centre made of ice and rock. A hazy cloud of gas called the coma surrounds the centre. A comet can also have one or more tails that trail behind it.

Comets only have tails when they get near the Sun. When a comet comes near the Sun, heat makes some of the ice turn to gas. The comet gets very bright. This gas streams away and carries dust with it, making one or more tails. The tails always point away from the Sun.

The most famous comet is Halley's Comet. The average orbit of Halley's Comet is around 76 years. It was last seen on Earth in 1986 and will return again in 2062 as it orbits close to the sun yet again.

did you know that ther is a comet called halleys comet and comets are sotof like shoting stars but thay are not they are difrent comets are a sotof rock in the sky that it is flying in are soller system so it is bornig up.

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