Fascinating. Did it require JWST to notice this, or did we just _not check_ until now? Is there a notable asymmetry in, say, the spin directions of galaxies c

Fascinating. Did it require JWST to notice this, or did we just _not check_ until now? Is there a notable asymmetry in, say, the spin directions of galaxies contained in the Hubble XDF? EDIT: This doesn't make a lot of sense. Lior Shamir has written that a lot of unrelated sky surveys recently have shown an asymmetry in the past few years, but only down around ~2%. https://www.mdpi.com/2073-8994/16/10/1389 https://www.mdpi.com/2073-8994/16/10/1389 https://aas.org/sites/default/files/2020-05/lior_aas236.pdf https://aas.org/sites/default/files/2020-05/lior_aas236.pdf JWST's asymmetry in both early work and more recent deep fields is more than an order of magnitude stronger. EDIT2: Notably they show anisotropic asymmetry: The galaxies are different rotations when you look in different directions, with something like +6% in one direction and -5% in another. But still nothing like the +50% now being reported as a general feature.