High Energy2026-04-222 minarXiv:2604.20095expressFinding the Start of a Cosmic JetThe plasma jet from the center of a distant galaxy is like a river that flows from its source and gradually becomes clear. Near the black hole, the flow is dense and opaque to radio waves, like muddy water.Niu Liu·Jun Yang·Xiaopeng Cheng·Ai-Ling Zeng·Wen Chen·Xiao-Long Yang·Xiaoyu Hong·Xia-Xuan Zhang·Jia-Cheng Liu·Zi ZhuAlbert EinsteinEdwin HubbleFritz Zwickyjetfast radio burstblack hole👍👎☆SimplePopularAdvanced