动画：黑洞周围的旋涡状吸积盘
2019 August 20 Animation: Spiral Disk around a Black Hole Illustrated Animation Credit: ESA, NASA, Hubble, M. Kornmesser Explanation: What would it look like to orbit a black hole? Many black holes are surrounded by swirling pools of gas known as accretion disks. These disks can be extremely hot, and much of the orbiting gas will eventually fall through the black hole’s event horizon — where it will never been seen again. The featured animation is an artist’s rendering of the curious disk spiraling around the supermassive black hole at the center of spiral galaxy NGC 3147. Gas at the inner edge of this disk is so close to the black hole that it moves unusually fast — at 10 percent of the speed of…