The first paragraph of the Introduction of the actual paper discusses "the asteroid story" and the evidence for it and has a dozen links to papers on the subjec

The first paragraph of the Introduction of the actual paper discusses "the asteroid story" and the evidence for it and has a dozen links to papers on the subject. https://www.nature.com/articles/s41467-021-25136-y https://www.nature.com/articles/s41467-021-25136-y