I think they've also summed orientations of rotating galaxies across the sky and there is no 'favored' orientation. So as far as they know, no net angular momentum.
BTW, aerial photos of cows (IANMTU) shows they exhibit a preferred N-S orientation during the day, so such surveys find even mundane terrestrial use . . .
BTW, aerial photos of cows (IANMTU) shows they exhibit a preferred N-S orientation during the day, so such surveys find even mundane terrestrial use . . .
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