A massive new cosmic map is revealing black holes, rare stars, and hidden gas

The Sloan Digital Sky Survey V has taken a major step toward mapping the sky on a truly global scale with Data Release 20. Known as DR20, the release includes the first optical (BOSS) SDSS-V spectra collected from the Southern Hemisphere, greatly expanding the survey beyond the groundwork established in earlier releases.

By combining these new southern observations with data gathered in the north, SDSS-V is bringing panoptic spectroscopy across both hemispheres. The result gives astronomers a broader view of stars, interstellar gas, and distant galaxies throughout the cosmos. DR20 contains part of the much larger panoptic spectroscopic map that the ongoing SDSS-V survey is continuing to build.

Studying both the nearby and distant Universe is essential for understanding the physical processes that shape it. DR20 advances that effort while moving SDSS-V further into an era of multi-wavelength, multi-epoch optical and infrared observations.