Tech UPTechnologyUchuu, the most realistic virtual simulation in the universe

Uchuu, the most realistic virtual simulation in the universe

The largest simulation of the universe is now available on the Internet thanks to an international team of researchers, including scientists from the Higher Council for Scientific Research (CSIC). It has been baptized as “Uchuu”, which in Japanese means “outer space”.

The recreation of the most realistic universe to date has been possible thanks to the Japanese supercomputer ATERUI II, which took a full year to generate this simulation that we can enjoy through Youtube, since the supercomputer has a maximum performance of 3 Pflops.

Like a time machine

Uchuu simulates 2.1 trillion particles in a computational cube that is 9.63 billion light-years wide on each side.

Producing Uchuu required “the 40,200 processors (CPU cores) available exclusively for 48 hours per month,” Tomoaki Ishiyama, a computer scientist at Chiba University, said in a statement. “Twenty million computer hours were consumed and 3 petabytes of data were generated, the equivalent of 894,784,853 images from a 12 megapixel mobile phone.”

In the simulation “we can move forward, backward and stop in time, we can ‘zoom in’ on a single galaxy or ‘zoom out’ to visualize a complete cluster, we can see what is really happening at each moment and in each place in the universe. from its beginnings to the present , being a fundamental tool for the study of the cosmos ”.

You want to try? You can download the simulation from here.

Referencia: The Uchuu simulations: Data Release 1 and dark matter halo concentrations

Tomoaki Ishiyama, Francisco Prada, Anatoly A Klypin, Manodeep Sinha, R Benton Metcalf, Eric Jullo, Bruno Altieri, Sofía A Cora, Darren Croton, Sylvain de la Torre … Show more

Monthly Notices of the Royal Astronomical Society, Volume 506, Issue 3, September 2021, Pages 4210–4231,

Published: 22 June 2021

The best photos that portray the world up close

These are some of the winning images of the Close-up Photographer of the Year 2021 awards.

NASA: Rover recordings show what the “sound of Mars” sounds like

Research knows a lot about Mars, but what does the red planet actually sound like? The Nasa rover "Perseverance" and two commercially available microphones show it.

SpaceX and Nasa: Astronaut Matthias Maurer's flight is postponed

The German astronaut Matthias Maurer has to wait a little longer for his first space flight: his start date for the ISS has been postponed again.

They find a star that turns on and off every 30 minutes

The star is about 1,400 light-years distant from Earth, and it appears to extract matter from a smaller companion.

The 3 books you have to read if you are interested in physics

We present you a list with three of the most important books in the history of physics. A branch that serves to explain the beginning of everything.