Home > Space > Why Is The Solar System Flat? Why Is The Solar System Flat? Space Share on Pinterest An explanation of why the solar systems, galaxies, and rings around planets settle into flat orbits. The orbit of planets around the sun is within a few percent of each other. Why should the orbits be so relatively flat? Share on Pinterest Related Posts Where NASA Believes Extraterrestrial Life May Be Found Top 10 Facts – Space [Part 1] Why Does Venus Spin Backwards? Virtual Tour To The Sun Solar System 101 | National Geographic