Actually, our solar system is the one and only Solar System - that's its name! Sure, there are lots of other stars in the universe with planets that orbit them, but those aren't called solar systems; they're called planetary systems instead.

That's a really interesting question! Until now, I've never actually thought about it. I did some research, and I didn't find much...

Everywhere on the websites of NASA and the European Space Agency, the solar system is just called "the solar system". Actually, it's commonly called the Solar System, with the first letters capitalized because it's a name (proper noun). According to a post on the Cornell University website click here , "Solar System" is the name approved by the International Astronomical Union (IAU), the organization in charge naming objects in our universe. The IAU website has lots of interesting information here.