This visual journey reveals how fluctuating energy fields ripple across the universe, producing light, radio waves, and X-rays that travel vast distances at the speed of light.

There are seven groups of the electromagnetic spectrum. To the left of the electromagnetic spectrum are radio waves, the lowest frequency form of radiation with the longest wavelengths.

But what produces these radio wave bursts has been puzzling astronomers since an initial detection in 2007. The best clue comes from an object in our galaxy known as SGR 1935+2154.