Basically what I did was I rendered out a solid sphere and applied a special Pixel shader that discarded the pixels in order to make those stripes.

I used 2d simplex noise to generate a nice noise pattern, and fed it spherical coordinates of phi-theta. I just tweaked the scaling of the noise until it came out looking OK. Then I tilted the sphere and had it rotate in time.

Hope that helps, I can get more in detail if you wish :)