Cosmic Crash Cars: How Black Holes Get Bigger Through Violent Space Collisions

Scientists discovered that the biggest black holes in the universe aren't born huge—they grow by smashing into each other over and over again, like cosmic bumper cars! These amazing space objects spin super fast after all their crashes, and they're made in crowded areas of space where lots of stars live close together. It's like the universe has a recycling program, but instead of plastic, it recycles black holes!