Scientists Reconsider the Likelihood of the Milky Way and Andromeda Colliding
TL;DR
Recent research suggests there is only about a 50% chance that the Milky Way will collide with Andromeda within the next 10 billion years, challenging previous assumptions of an inevitable collision, due to uncertainties in measurements and gravitational influences of nearby galaxies.
- Astronomers thought the Milky Way was doomed to crash into Andromeda. Now they're not so sure Phys.org
- Apocalypse When? Hubble Casts Doubt on Certainty of Galactic Collision NASA Science (.gov)
- Milky Way’s Chances of Hitting Andromeda Galaxy May Be 50/50 Sky & Telescope
- No certainty of a Milky Way–Andromeda collision Nature
- How the Milky Way-Andromeda merger became so uncertain Big Think
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