Little red dots are among JWST’s strangest finds: compact crimson objects that hint at feeding black holes yet stay oddly quiet in X-rays and radio. Most are too distant to study in detail, so astronomers turned to a nearby cousin. Mining three decades of radio data, they found that this local little red dot carries a compact, slowly brightening radio signal best explained by a feeding black hole, not a starburst. We explain the finding, and why the black-hole origin is inferred by elimination.
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 studied a nearby example, J092359+415736 at redshift 0.323, using five radio surveys spanning 1994 to 2024. They found a compact radio source that has brightened over 26 years, best explained by accretion onto its central black hole rather than star formation. The accretion origin is inferred by elimination, not by direct imaging.){kind=link}