Hi Heny!
Yes, the solar activity produces effects much further than the solar system. It drives changes inside a region called Heliosphere, which is a non-spherical bubble with dimensions bigger than 3 times the distance between the Sun and Pluto.

Hi; following up on Alessandra's answer, there would be differences in just how the others planets may be impacted, due to things like whether they have strong planetary magnetic fields, atmospheres, etc. for the interaction with the solar storm output. The impacts carry over to the moons and small minor planets, too. So some planets we know show aurora for example, but others don't. Aurora means that the planet's atmosphere and magnetic field is interacting with the solar particles and magnetized plasma, maybe shielding the surface a bit (like what happens on Earth), while without a planetary magnetic field or any atmosphere, the solar storms are not being shielded at all and instead would bring their radiation and particles all the way to the planet's surface.

Hello! Some of the other planets in our solar system have aurora, just like the Earth does. Scientists have made observations of how solar storms like coronal mass ejections (CMEs) affect the aurora on Jupiter. You can see X-ray images of aurora on Jupiter caused by a CME here - https://www.nasa.gov/miss...ghts-on-jupiter.html