The most recent phase, SDSS-III, began in 2008 and includes the Baryon Oscillation Spectroscopic Survey (BOSS), a part of SDSS-III aimed at mapping the cosmos.

A global consortium of astrophysicists have created the world’s largest three-dimensional map of the universe, a project 20 years in the making that researchers say helps better explain the ...

It matches theoretical expectations for the chemical footprint left behind by very massive, very early stars. ... An optical image of LAMOST J101051.9+235850.2 taken from SDSS.

The James Webb Space Telescope captured amazing imagery of merging galaxies II ZW 96. The merger is located 500 million light-years from Earth in the constellation Delphinus. Credit: ESA/Webb ...

SDSS J0100+2802 is the rather understated name scientists have given to an exceptionally luminous, newly discovered quasar. It's 12.8 billion light years away and shines as brightly as 420 million ...

While mapping streams of stars coursing through the Milky Way’s halo, astronomers at Cambridge University in England discovered two new, faint satellite galaxies orbiting our own. Vasily ...

The SDSS survey can resolve a lensed ring into the multiple discrete images that compose it. Belokurov and his colleagues searched for multiple blue, faint companions around Luminous Red Galaxies ...

A view from multiple telescopes of SDSS J084905.51+111447.2, a system of three merging galaxies found about 1 billion light-years from Earth. The system harbors three supermassive black holes on a ...