Astronomers may be on the verge of uncovering a long-lost galactic population. Using ultra-high-resolution simulations and sophisticated modeling, researchers at Durham University predict that the Milky Way could be surrounded by up to 100 previously undetected satellite galaxies. These faint, elusive “orphan galaxies” may have been stripped of their dark matter halos, making them nearly […]



Summary

Astronomers predict the Milky Way could be surrounded by up to 100 undiscovered satellite galaxies, dubbed “orphan galaxies.” These faint and difficult-to-detect galaxies are theorized to have lost their dark matter halos due to interactions with the Milky Way. High-resolution simulations from Durham University suggest their existence, implying a significantly richer galactic neighborhood than currently observed. Finding these “orphan galaxies” would offer crucial insights into galaxy formation and the distribution of dark matter in the local universe. The lack of dark matter also explains why they haven’t been spotted before.

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