When astronomers first unveiled the image of Sagittarius A*, the supermassive black hole at the center of the Milky Way, it was hailed as a stunning triumph. It was a portrait of the ultimate darkness itself. Suspended in the image was a black void encircled by a glowing, doughnut-like ring of light, the product of superheated gas spiraling toward an inevitable descent into the black hole. For a moment, it seemed as if we were staring straight into the eye of the heart of our galaxy. But now, a new study suggests this may have been an illusion all along — or at least, not entirely accurate. Sa…