M87星系中心的黑洞是人类首个真正观测到的黑洞图像，黑洞M87*的质量超过太阳质量的65亿倍，为了更多地了解黑洞M87*的结构，科学家利用世界各地的 ...

人马座A是距离地球最近的超大质量黑洞，位于银河系中心，距离我们约2.6万光年。然而，首次黑洞照片拍摄的对象却是距离5400万光年的M87超大质量黑洞。为何不优先选择更近的人马座A呢？

On left, this composite simulated image shows how M87* is seen by the Event Horizon Telescope at 86 GHz (red), 230 GHz (green), and 345 GHz (blue). On right, 345 GHz is seen in dark blue ...

Prof Heino Falcke, of Radboud University in the Netherlands, who proposed the experiment, told BBC News that the black hole was found in a galaxy called M87. "What we see is larger than the size ...