Scientists have detected cosmic waves that sound like birds chirping in an unexpected place. These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing. When ...

They originate from high above Earth's surface and, as a sound wave, are comparable to birds chirping. Prior to the observation, these waves had only been detected as far away as 51,000 kilometers ...

When converted to audio signals, their sharp notes mimic high-pitched bird calls. Researchers have captured such sounds in space before, but now they have sensed the chirping waves from much ...