The DESI team has been using NERSC to model the shapes and colors of more than 1.6 billion individual galaxies detected in 4.3 million images. NERSC resources calibrate the raw data coming off the Mayall telescope to aid DESI in their goal to produce the largest 3D map of the universe ever created. https://www.nersc.gov/news-publications/nersc-news/science-news/2020/supercomputing-pipeline-aids-desis-quest-to-create-3d-map-of-the-universe/