57 reactions · 40 shares | Galaxy formation is a complicated process that unfolds over many millions of years.  See how advanced supercomputer simulations are helping us understand how these cosmic structures form ✨ by modeling the flow of gases that drive their evolution: https://go.nasa.gov/333ZRAi #SC19 | NASA Ames Research Center | Facebook

Galaxies are concentrations of stars, gas, dust, and dark matter. They come in a variety of shapes and sizes. Some are fated to collide, like the Milky Way and Andromeda. Credit: NASA and J. Olmsted (STScI) | NASA's James Webb Space Telescope