Datum: MOND vs. dark matter

[unixronin]

In January of this year, Olivier Tiret and Françoise Combes of the Paris Observatory published a paper modelling the formation of barred spiral galaxies, in which they use computer simulations to compare the formation of barred spirals according to a model using Newtonian gravity plus dark matter to a model using MOND/TeVeS.  They found that the MOND/TeVeS model more closely matches the occurrence of barred spiral galaxies as seen today, and also found that bars form much earlier (as soon as a billion years) under the MOND/TeVeS model.