Flat dark-matter sheet explains Andromeda’s inbound motion amid receding neighbors
TL;DR Summary
A Nature Astronomy study using local-universe simulations finds a vast, flat sheet of dark matter surrounding the Local Group that counteracts the Milky Way–Andromeda attraction. This sheet’s gravity pulls nearby galaxies outward, explaining why Andromeda is approaching us while other nearby galaxies are receding with cosmic expansion, reconciling observations with the standard cosmological model.
- Every major galaxy is speeding away from us, except one — and we finally know why Live Science
- Supermassive new theory on what lies at the heart of our galaxy The Times
- 'Dark matter, not a black hole, could power Milky Way's heart' The Royal Astronomical Society
- Milky Way’s ‘Central Black Hole’ is Compact Object Composed of Fermionic Dark Matter, Study Says Sci.News
- Daring Theory Challenges the Black Hole’s Reign Over the Milky Way’s Core Gizmodo
Reading Insights
Total Reads
1
Unique Readers
13
Time Saved
86 min
vs 87 min read
Condensed
100%
17,263 → 54 words
Want the full story? Read the original article
Read on Live Science