Tootfinder

Rubin LSST DP2 unveils almost-dark galaxies in the Virgo Cluster: #galaxies identified in Data Preview 2 of the #Rubin Legacy Survey of Space and Time. We present a population of seven almost-dark galaxies identified in Data Preview 2 of the Rubin Legacy Survey of Space and Time. They surround M49 in the vicinity of the #VirgoCluster [...]. Their characteristics are analogous to those of the faintest and low-mass galaxies identified among satellite galaxies And XXI, And XXIII, and And XXV in the Local Group. This discovery demonstrates the power of the forthcoming Rubin LSST 10-year survey to uncover extremely faint galaxies at scale, promising the large statistical samples needed to constrain the faint-end luminosity function and the nature of dark matter."

Discovery of the Distant, Ultra-Faint Milky Way Satellite Aquarius IV with the Vera C. #Rubin Observatory Early Data Preview 2: https://arxiv.org/abs/2608.02601 -> An Early Discovery by Rubin Observatory: https://astrobites.org/2026/09/08/rubin-first-ultrafaint-dwarf/

Rubin Observatory Opens Deep Window on Famous Cosmic Field: #Rubin image featuring hundreds of thousands of distant galaxies in and around the #COSMOSField marks the Observatory’s first #LSST Camera image and catalog release for science.