University of Zurich (UZH) researchers have simulated the way our Universe formed by creating the largest virtual universe with a large supercomputer. The team turned 2 trillion digital particles into around 25 billion virtual galaxies that together make up this virtual universe and galaxy catalogue. The catalogue will be used on the Euclid satellite, to be launched in 2020 to explore the nature of dark energy and dark matter, to calibrate the experiments.
“The nature of dark energy remains one of the main unsolved puzzles in modern science,” UZH professor of computational astrophysics Romain Teyssier said in a press release. Euclid will not be able to view dark matter or dark energy directly; the satellite will instead measure the tiny distortions of light of distant galaxies by invisible mass distributed in the foreground—dark matter. “That is comparable to the distortion of light by a somewhat uneven glass pane,” UZH Institute for Computational Science researcher Joachim Stadel said in the release.