Comet tails are formed as a result of the fact that, under the influence of radiation from the Sun and the solar wind, gas and dust, like smoke from a chimney, are “blown away” from the head of the comet in the direction opposite to the direction of movement of the Sun. The different shapes and brightness of comet tails depend on the ratio of gas and dust in their composition. Their length can reach several million kilometers.
Comet tails
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