Rubin Observatory discovers two hidden companions of the Milky Way. Hundreds more may be waiting
Rubin Observatory has already uncovered two previously unknown companions of the Milky Way using preliminary observations covering just 7% of the night sky.
Scientists suspect hundreds of additional satellite galaxies remain undiscovered, and Rubin's powerful telescope could finally bring them into view.
The discoveries include an extremely faint galaxy 355,000 light-years away and a star cluster hidden behind cosmic dust.
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