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Breakthrough AI Simulation Tracks 100 Billion Stars in Milky Way

11/17/2025

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Summary

Story summary

Researchers at RIKEN Center in Japan, with The University of Tokyo and Universitat de Barcelona, developed the first Milky Way simulation tracking more than 100 billion stars over 10,000 years.
Presented at SC '25, the method combines AI with traditional simulations and runs about 100 times faster than prior models.
The approach enables detailed modeling of supernovae and gas dynamics without slowing the overall simulation.

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Story summary

Researchers at RIKEN Center in Japan, with The University of Tokyo and Universitat de Barcelona, developed the first Milky Way simulation tracking more than 100 billion stars over 10,000 years.
Presented at SC '25, the method combines AI with traditional simulations and runs about 100 times faster than prior models.
The approach enables detailed modeling of supernovae and gas dynamics without slowing the overall simulation.