Mysterious 'red dots' in the early universe turned out to be giant black holes tilted edge-on to us—like a spotlight that glows red from the side. This may be how the first supermassive black holes grew.
🎯 The prototype of the red dots—the SS 433 system in our Galaxy—shoots out plasma jets at a quarter of the speed of light, blowing a bubble hundreds of light-years across.
🎬 In Star Wars, the color of a lightsaber signals your side of the Force; in space, the color of a distant black hole depends on the angle: red when seen edge-on, and blue when staring you straight in the face.