DESI reaches 50M milestone On 18 December 2024, DESI reached a new milestone, having measured the spectra of 50 million astronomical sources (36.3 million galaxies and quasars, and 13.7 million stars) over 819 nights of observations. The milestone is remarkable for both its speed and scope. As described by DESI team member Arjun Dey (NOIRLab), “When […]

On November 19, DESI released another set of papers based on year one (Y1) data. The first set of papers, summarized here, was released on April 4 and focused on a particular feature seen in the clustering of tracers called the Baryon Acoustic Oscillation (BAO) standard ruler. These new results provide an extended, “full-shape” analysis […]

A graduate student at the Harvard-Smithsonian Center for Astrophysics, Claire Lamman studies the orientations and alignments of galaxies and what they can tell us about cosmology and the cosmic web. She is also a talented artist and the recipient of a National Academies of Sciences Excellence in Science Communication Award for work that includes the […]