Forget online games that promise a “whole world” to explore. An international team of scientists has created – with the help of a Japanese supercomputer – a huge virtual universe, which he uploaded to the computer cloud, so that anyone anywhere is able to “travel” in it.
This is the biggest and most realistic simulation of the universe that has existed to date. It is called “Uchuu” which means “Outer Space” in Japanese and consists of 2.1 trillion particles in a computer cube with a side of 9.63 billion light years, about a third of the distance between the Earth and the most distant known galaxies.
Utsu simulates the evolution of matter throughout the 13.8 billion-year history of the universe, from the Big Bang to the present day. According to the researchers, “it’s like a time machine: we can go forward, backward or stop time, we can ‘zoom in’ on a single galaxy or see a whole swarm of galaxies, we can see what’s happening really every minute in every part of the universe, from its earliest days until today, which is an essential tool for the study of the Universe. “
Utsu was created with the help of ATERUI II (Cray XC50), the world’s most powerful supercomputer dedicated to astronomy and located at the National Astronomical Observatory of Japan. Despite its enormous computing power, it took a long time to create the great simulation of the universe. The publication, led by Associate Professor Tomoaki Ishiyama of the Japanese University of Tsimba, was published in the British magazine “Monthly Notices” of the Royal Astronomical Society.
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