Nearly all stars fill winds. The Sun's wind,which originates from its hot outer layer (corona), contains charged particles emitted at a rate equivalent to approximately one-millionth of the moon's mass each year. Some of these particles bombard the Earth, and producing radio static,auroral glows, and (in extreme cases) disrupted global communications. The winds of stars more evolved than the Sun (like the so-called giant stars that are cooler and larger in diameter than the Sun) often contain dust particles which enrich the interstellar medium with heavy elements. These winds also contain small grains on whose surfaces chemical reactions produce complex molecules. The dust also absorbs radiation and obscures visible light. Understanding the mechanism(s) that produce these winds in evolved stars is important both for modeling the wind and the character of the stellar environment, and for predicting the future evolution of the star.
Source: phys.org