Newfound galaxies are ‘ancient fossils of the early universe’

Three ultra-faint dwarf galaxies have been discovered around a distant spiral galaxy with a mass similar to that of the Milky Way. Dwarf galaxies are believed to be about 12 billion years old, meaning their stars formed within 2 billion years of the Big Bang early in the history of the universe.

At a distance of about 11.4 million years from Earth, the super-faint galaxies are the first to orbit a galaxy like the Milky Way outside our Milky Way’s cosmic backyard, known by astronomers as its “Local Group” which includes Andromeda and Huh. other neighboring galaxies.

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