The yellow area is the center diff. The little black rectangles are "screws". There are a few things missing. I left out the "wall" of the diff that houses the bearing, which would be between the red rotor and the blue pinion.
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens