This ArXiv fascinating paper today considers whether the number of galaxies within a galaxy group or cluster is more likely to be odd or even. The authors’ analysis indicates that the universe favours odd numbers, with results achieving a significance level well above the 4.1−σ threshold.
https://arxiv.org/abs/2503.22839
There are some equally significant papers on ArXiv today, some published in the august Acta Prima Aprilia, e.g. https://arxiv.org/abs/2503.23614