The Virgo Consortium is a group of scientists who study the universe using supercomputers to simulate what happens in space. Imagine you have a toy city built with Legos that you want to study. You could try to look at every single building and road in the city and figure out how everything works, but that would take a really long time. Instead, you could make a model of the city with smaller Legos and use your imagination to figure out how things work. That's kind of what the Virgo Consortium does with the universe.
They use a supercomputer to create a model of the universe using a ton of data they've collected about stars, galaxies, and other things in space. The supercomputer can run simulations that show how things would look and behave in the universe. Scientists can then study these simulations to learn more about how the universe works and make predictions about what might happen in the future.
By using this model, the Virgo Consortium hopes to answer big questions about the universe, like how it formed, how it's changing, and what will happen to it in the future. It's like they're building a really cool Lego world and trying to figure out what makes it tick.