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New Model Reveals Local Group's Galactic Movements Explained

3/6/2026

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Summary

Story summary

The study offers a solution to why galaxies recede from the Milky Way while Andromeda approaches.
The team led by Ewoud Wempe used computer simulations to model matter around the Local Group.
They identify a flattened structure containing both ordinary and dark matter.
The model, described as a "virtual twin" of our neighborhood, reproduces observed galaxy positions and speeds.

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Story summary

The study offers a solution to why galaxies recede from the Milky Way while Andromeda approaches.
The team led by Ewoud Wempe used computer simulations to model matter around the Local Group.
They identify a flattened structure containing both ordinary and dark matter.
The model, described as a "virtual twin" of our neighborhood, reproduces observed galaxy positions and speeds.