  Self-gravitational structure formation theory for astrophysics and cosmology
is revised using nonlinear fluid mechanics. Gibson's 1996-2000 theory balances
fluid mechanical forces with gravitational forces and density diffusion with
gravitational diffusion at critical viscous, turbulent, magnetic, and diffusion
length scales termed Schwarz scales. Instability occurs for scales larger than
the largest Schwarz scale rather than only for scales larger than the acoustic
scale introduced by Jeans 1902. From the new theory, the inner-halo-dark-matter
of galaxies consists of dark proto-globular-star-cluster (PGC) clumps of
small-planetary-mass objects called primordial fog particles (PFPs) formed soon
after decoupling at 300,000 years. PFPs explain Schild's 1996 "rogue planets
>... likely to be the missing mass" of a quasar lens-galaxy. WIMP dark matter
fluid is super-diffusive and fragments at large L_SD scales to form
outer-galaxy-halos. In the beginning of structure formation 30,000 years after
the Big Bang the viscous Schwarz scale L_SV matched the horizon scale L_H at
proto-galaxy-supercluster masses, decreasing to proto-galaxy fragments at
300,000 years. WIMP diffusivities from observed outer-halo (L_SD) scales
indicate WIMP particle masses in the neutrino rather than neutralino range.
