黑洞不是完全“黑”的！恰恰相反，这种天体还有可能极其耀眼，比恒星、甚至比星系还明亮。

1、天文学家发现超长喷流 ...

In a galaxy 7.5 billion light-years away, a supermassive black hole shoots out streams of magnetized plasma that span 140 ...