X-Ray Dot Emerges as Key to Mystery of Ancient Cosmic Red Dots

NASA’s Chandra X-ray Observatory and the James Webb Space Telescope have identified an X-ray–emitting ‘dot’ among the mysterious little red dots, suggesting these ancient, ultra-massive objects may represent a new, gas-enshrouded phase of supermassive black hole growth—potentially a “black hole star” stage—most of them located about 12 billion light-years away.