Scientists detect chirping cosmic waves in an unexpected part of space

Scientists have detected cosmic waves that sound like chirping birds in an unexpected place. These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing. When converted to audio signals, their sharp notes mimic bird calls. Now researchers have sensed the chirping waves farther away: over 62,000 miles from Earth. The research was published Wednesday in the journal Nature. The chorus was detected in a region where Earth’s magnetic field is stretched out, which scientists didn’t expect. That raises new questions about how these chirping waves form. Scientists have detected cosmic waves that sound like chirping birds in an unexpected place. These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing. When converted to audio signals, their sharp notes mimic bird calls. Now researchers have sensed the chirping waves farther away: over 62,000 miles from Earth. The research was published Wednesday in the journal Nature. The chorus was detected in a region where Earth’s magnetic field is stretched out, which scientists didn’t expect. That raises new questions about how these chirping waves form.  AP Technology and Science