a-guy-online t1_j7h2gqp wrote
Not so much a blaze of fire, but the Sun does shoot out particles constantly (mostly electrons and protons) in the solar wind. There's also solar flares, coronal mass elections, and solar energetic particle events that occur rather frequently.
The Sun does have a heliosphere, though, and it interacts with the interstellar medium (yes, there is a non-trivial amount of mass in the spaces between stars). Heliopause occurs when the pressure of the solar wind matches the pressure of the interstellar medium (at about 100 AU).
As the Sun travels through this interstellar medium, it leaves behind a heliotail that is the direction opposite the Sun's motion in the galaxy.
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