Sonic Rainboom

The Sonic Rainboom is a phenomenon in the "My Little Pony" universe where a flying pony, Rainbow Dash, breaks the sound barrier while descending, causing a multicolored shockwave of light and sound. This creates a spectacular visual and auditory display similar to a sonic boom but with vibrant rainbow colors. The event is rare and signifies extraordinary speed and skill, often resulting in a rainbow-colored explosion of energy that leaves a lasting impression. It’s both a scientific anomaly within the story and a symbol of exceptional achievement and courage.