No, it didn't...
The solar system is what it is; what's changed is how "we" define it.
Why peep's are so willing to define what we don't know based on what we think we know really defines who
we are, not what the solar system really is.
Let 'em change it; let 'em not change it: What's the difference if ya' really need to get there?
And if you do get there, how's that not going to change everything about what we thought was there in the first place?
If we're not ready to accept the things we learn by going "out" there, why go?