Nature Astronomy published my comment on why planes of satellite galaxies are a problem for ΛCDM cosmology in their December issue. It is titled “It’s time for some plane speaking”, and part of their new collection on dwarf galaxies. It was a lot of fun to write such an opinion piece style text for a change, instead of the usual, more formal scientific articles.
You can access my article here.
And here’s the collection of articles on dwarfs galaxies. The collection will be further expanded with more articles during the month, and also contains a counter-comment on the satellite planes issue by Mike Boylan-Kolchin.