First Ever Milky Way Simulation With 100 Billion Stars
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Breakthrough AI Simulation Achieves Star-by-Star Milky Way Modeling
Discover how researchers shattered the computational barrier to run the first true star-by-star simulation of the Milky Way. This application of deep learning promises to revolutionize astrophysics and climate modeling.
Short Summary
- [00:02:05] Scientists achieved a major breakthrough simulating the Milky Way based on individual stars, requiring 300 billion particles.
- [00:07:40] The key innovation merges conventional physics simulation with deep learning to handle complex, short-time events like supernovae efficiently.
- [00:10:17] This novel AI surrogate model accelerates computation by over 100 times, making multi-billion-year evolution studies feasible.
The presenter notes the monumental difficulty in simulating galactic formation—specifically managing the vast scale difference between slow stellar orbits and rapid supernova physics. This new Japanese research successfully integrates specialized AI processing nodes, unlocking high-resolution modeling previously deemed impossible due to time-step constraints.
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Top Comments (10)
Scientists simulated an entire galaxy before GTA 6.
When I was in middle school back in the mid 80's, I created a planetary simulator on my TRS-80. It was written in BASIC and could simulate a few planets going around our sun. It ran pretty well, but over time, the rounding errors of math and the slowness of the computer requiring me to simulate it in chunks of a few minutes, so it would run for several hours before you noticed that the orbits kind of deformed a bit and the longer you went the bigger the errors. So now us having computers capable of simulating hundreds of billions of stars is beyond amazing to me.
Really interesting, but the one thing we can guarantee is that the input data will be wrong, because there is a lot we don’t know or understand - dark matter to name but one. So I would expect the results to diverge from reality, but the nature of that divergence may in itself shed light on some galactic mysteries.
Haha no way. Been a while since I watched a video of yours, I searched your channel and you happened to have uploaded a video a minute ago lol. Thank you wonderful person
And you thought the 3-body problem was hard! Thanks a bunch, Anton. This is awesome.
Imagine simulating a galaxy to experiment with things and this galaxy creates life
I am most excited about the implications for weather modeling. As flooding events keep getting more extreme with a warning atmosphere, just doubling the warning time would be great, and even longer times would be very useful for setting up rapid response and things such as setting up temporary dikes, shelters, getting people safely out of the way more orderly, etc.
Holy moly! This is amazing. Thank you so so much Anton. I am honored to know such a wonderful person. You are fantastic at your summaries. Our family has learned so much from you for many years. Now I am off to watch inception and the matrix back to back and reflect on this article! 😂
Cant wait this to be implemented into gta7
Interesting that they would go with U-net architecture, instead of diffusion.
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Top Comments (10)
Scientists simulated an entire galaxy before GTA 6.
When I was in middle school back in the mid 80's, I created a planetary simulator on my TRS-80. It was written in BASIC and could simulate a few planets going around our sun. It ran pretty well, but over time, the rounding errors of math and the slowness of the computer requiring me to simulate it in chunks of a few minutes, so it would run for several hours before you noticed that the orbits kind of deformed a bit and the longer you went the bigger the errors. So now us having computers capable of simulating hundreds of billions of stars is beyond amazing to me.
Really interesting, but the one thing we can guarantee is that the input data will be wrong, because there is a lot we don’t know or understand - dark matter to name but one. So I would expect the results to diverge from reality, but the nature of that divergence may in itself shed light on some galactic mysteries.
Haha no way. Been a while since I watched a video of yours, I searched your channel and you happened to have uploaded a video a minute ago lol. Thank you wonderful person
And you thought the 3-body problem was hard! Thanks a bunch, Anton. This is awesome.
Imagine simulating a galaxy to experiment with things and this galaxy creates life
I am most excited about the implications for weather modeling. As flooding events keep getting more extreme with a warning atmosphere, just doubling the warning time would be great, and even longer times would be very useful for setting up rapid response and things such as setting up temporary dikes, shelters, getting people safely out of the way more orderly, etc.
Holy moly! This is amazing. Thank you so so much Anton. I am honored to know such a wonderful person. You are fantastic at your summaries. Our family has learned so much from you for many years. Now I am off to watch inception and the matrix back to back and reflect on this article! 😂
Cant wait this to be implemented into gta7
Interesting that they would go with U-net architecture, instead of diffusion.