Astronomers first detected the presence of a wind of particles coming from the Sun by

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Astronomers first detected the presence of a wind of particles coming from the Sun by noting the wind's effects on the tails of comets. As comets approach the Sun, the solar wind interacts with their comas (atmospheres) and ionizes gases, creating the characteristic tails. This discovery was made in the mid-20th century by analyzing the spectra of comets and noting the ionized gases present in their tails.

Astronomers First Detected the Presence of a Wind of Particles