Kinda fun jumping around on this dyson sphere typa things.
Tip for blender - right lick an object and you can change its shading mode. There are flat - each polygon will be distinct, smooth - polygons wouldn't be seen but there can be artifacts like you have, and auto smooth - it is like smooth, but not on edges with sharper angles. Artifacts you have are there because blender tries to smooth out 90 degree angle near a very thin side, and it doesn't look right.