I guess my point is that they are, at minimum, not in the mainstream in discussing this phenomena. That is not a refutation of their research or logic but give

I guess my point is that they are, at minimum, not in the mainstream in discussing this phenomena. That is not a refutation of their research or logic but gives context to what other serious scientists have concluded. Even this article [1] on NASA's astrobiology site (a.k.a. "Life in the universe") concurs that they are hematite mineral concretions and that the only real implication to life is the ancient presence of a large volume of water. [1] https://astrobiology.nasa.gov/news/check-type-iron-blueberries/ https://astrobiology.nasa.gov/news/check-type-iron-blueberri...