An all-sky map of half a million supermassive black holes

The Black Hole Mapper reaches a milestone with its first southern hemisphere optical observations, coordinated eROSITA X-ray identification, and multi-epoch tracking of accreting black holes across the universe.

The post Mapping Monsters: SDSS-V Data Release 20 Unveils All-Sky Views of Supermassive Black Holes first appeared on SDSS.