unamerican wrote:
Why is the Solar System Flat ?


Because rotating clouds of dust and gas from which solar systems form
tend to flatten out.


Why do the planetary orbits all fall within the same plane give or take
a few degrees ?


Some of the new planetoids being discovered don't.


Is the Milky Way also flat ?


Look up in the sky. It doesn't look spherical.


Is the Universe flat :-)


I don't know. Does it rotate?

Double-A