One Of The Milky Way's Satellites Could Be A "Little Red Dot"

October 29, 2025 Universe Today

One Of The Milky Way's Satellites Could Be A "Little Red Dot"
By Evan Gough (https://ift.tt/F4lDj1H)

Believe it or not, there's a dwarf galaxy in this image. It's named Segue 1 and it's one of the Milky Way's smallest and dimmest satellite galaxies. Despite its small stature, it's existence is a teachable moment for scientists. Image Credit: SIMBAD, Sloan Digital Sky Survey.

A tiny dim satellite galaxy of the Milky Way doesn't have enough stars to hold itself together. Its properties suggest that its dark matter halo is holding it together, but new research counters that. Researchers say that it's not dark matter but a massive black hole that's keeping the dwarf galaxy intact.

October 30, 2025 at 02:58AM
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