FWIW, as with practically any astrophysics paper published in practically any journal, a preprint can be found by title or author search. In this case, https:

FWIW, as with practically any astrophysics paper published in practically any journal, a preprint can be found by title or author search. In this case, https://arxiv.org/abs/2005.13161 https://arxiv.org/abs/2005.13161 (and note "Comments: Published online in Nature 27 May, 2020"). Being published in Nature has some prestige still, even for astrophysics collabs.; even if -- for the sake of argument -- one accepts there are journals with better focus coupled with stronger editing of astrophysics papers in this area, that might not be relevant to all of the sources of funding for the collaboration.