Made with XDP, using 2 fractal cloud fills (one for the orb and one for the space background).
For the orb, I ramped up the contrast of the two colours in the fractal fill and this made it easy to
get a vector result with Xara's Bitmap Tracer (using pretty much the default settings).
Having a vector result allowed me to use the Mould Tool to get the spherical result I wanted.
I placed another circle on top with a black fill and a circular transparency.
Bob.
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