From the updates to Kim Boekbinder's SPACE! album project:
"Chorus consists of brief, rising-frequency tones that sound like the chorus of birds singing at sunrise, hence the name "chorus" or "dawn chorus". Chorus at Earth is generated by electrons in Earth's Van Allen radiation belts. Once generated, the chorus waves affect the motions of the electrons through a process called a wave-particle interaction. Wave-particle interactions disturb the trajectories of the radiation belt electrons and cause the electrons to hit the upper atmosphere." - Donald A. Gurnett/U/Iowa.
Every day the sky is singing electromagnetic songs to you. No one knows why.
Would you consider that to be trivial knowledge, or significant?