The solar wind is a continuous flow of charged particles and a magnetic field generated by continuous expansion in the interplanetary space of the solar corona.
Now the first findings observed have been published thanks to everyone imagines close up of the Parker solar probe, summarized by Nasa in five points.
The first is actually a confirmation and concerns the so-called zodiacal dust, the dust that surrounds the Sun and of which we can see the reflection in the so-called zodiacal light. Parker's data have allowed us to establish that about 5 million kilometers from the Sun an area free of dust starts, because it is completely vaporized by heat.
The second point concerns the solar wind, which from the ground looks like a fairly uniform flow, close to its source the situation is decidedly more complex and unstable. In particular, the probe has detected species of waves, called "switchbacks", which cause backward and then forward curls in the magnetic field lines.