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AI Boosts Milky Way Simulations, Accelerates Galactic Studies

11/28/2025

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Summary

Story summary

Researchers at the RIKEN Center in Japan simulated the Milky Way, modeling over 100 billion stars for 10,000 years with 7 million CPU cores and machine learning, achieving a 100-fold speed increase.
An AI surrogate model predicts how supernovae affect surrounding gas, enabling detailed tracking of stellar dynamics.
The team can model 1 million years in 2.78 hours, reducing time needed for galactic simulations and aiding studies of galactic evolution.

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Story summary

Researchers at the RIKEN Center in Japan simulated the Milky Way, modeling over 100 billion stars for 10,000 years with 7 million CPU cores and machine learning, achieving a 100-fold speed increase.
An AI surrogate model predicts how supernovae affect surrounding gas, enabling detailed tracking of stellar dynamics.
The team can model 1 million years in 2.78 hours, reducing time needed for galactic simulations and aiding studies of galactic evolution.