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Поисковые слова: comet tail
The Exploration of the Earth's Magnetosphere"

The Solar Wind


           

The first evidence for the solar wind came from comet tails

Comet Hale-Bopp of 1997 (here) has two distinct tails.

The white one is a dust tail driven by light pressure.

The blue one is an ion tail driven by the solar wind. It is not radial, as the comet has about 1/10 the speed of the solar wind.