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Quasars

Supermassive Black Holes OJ287 J1601+3102 Mapping the Universe Mapping Quaia catalog Radio Jets

First Radio Image Resolves Two Supermassive Black Holes in Quasar OJ287

A peer-reviewed RadioAstron–VLBI image resolves two sources in quasar OJ287 to confirm the long-predicted 12-year black-hole pair.