Scientists detect unexpected chorus waves 100,000 miles above Earth

smithsonianmag.com February 3, 2025, 10:00 PM UTC

Scientists have discovered chorus waves, bursts of energy, at a surprising distance of 100,000 miles above Earth. Previously, these waves were only detected around 32,000 miles from the surface. This new finding challenges existing theories about their formation. The waves, named for their bird-like sounds when converted to audio, were found in a flat region of the magnetosphere. This suggests they may be produced by different mechanisms than previously thought, prompting further research into their origins. Additionally, researchers identified an "electron hole," which supports the chorus wave theory. Understanding these waves is crucial for future space exploration, as they can create high-energy particles that disrupt satellite communications and pose risks to astronauts.


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