Lasers That Breathe! Scientists Solve the Pulse Mystery

Scientists have finally figured out why some super-fast lasers create light pulses that grow and shrink over and over again, almost like they're breathing in and out. These "breathing" lasers have confused physicists for years, but now we know how they work! Understanding this strange behavior could help us build even better lasers for hospitals, computers, and cool technology we haven't even invented yet.