Look at the image and read the caption. Several spheres shown in movement by wispy tails behind them. Some collide and merge together. Atomic nuclei move so fast inside a star that they become fused together when they collide. Which excerpt from "Black Hole Beginnings" would this image best support in a multimedia presentation? As more stuff gathers, its combined gravitation grows stronger. . . . the nuclei are going so fast that their speed overpowers their repulsion. In one giant, sudden WHSH!, the center of the star compresses. . . . the crushing weight of the star material continues to press inward.