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Milky Way-Andromeda Collision Chance Halved to 50%

6/9/2025

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Summary

Story summary

Astronomers have revised their predictions, now estimating a 50% chance of a collision between the Milky Way and Andromeda galaxies within the next 10 billion years, a notable decrease from earlier forecasts. The gravitational pull from neighboring galaxies, particularly the Large Magellanic Cloud, plays a crucial role in this shift, with a merger expected in just 2 billion years.

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Story summary

Astronomers have revised their predictions, now estimating a 50% chance of a collision between the Milky Way and Andromeda galaxies within the next 10 billion years, a notable decrease from earlier forecasts. The gravitational pull from neighboring galaxies, particularly the Large Magellanic Cloud, plays a crucial role in this shift, with a merger expected in just 2 billion years.