Scientists prefer witchcraft, ur um, dark matter to new gravitational theory

A controversial theory that challenges the existence of dark matter has been buoyed by studies of gas-rich galaxies.

Instead of invoking dark matter, the Modified Newtonian Dynamics theory says that the effects of gravity change in places where its pull is very low.

The new paper suggests that Mond better predicts the relationship between gassy galaxies' rotation speeds and masses.

However, critics maintain that dark matter theory is a better general description of the Universe we see.

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