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NASA: A plasma jet hitting the Earth's magnetic field produces a drum-like sound (video)

via:cnBeta.COM     time:2019/2/14 10:01:25     readed:143


A new study recently published finds that there is a sound that sounds like a drum in space. Drum-like rhythms are produced by the impact of plasma jets on the boundary of magnetic bubbles around the Earth. The magnetic bubbles around the Earth that protect us from all kinds of space hazards are called magnetospheres, which themselves exist in an area called the magnetopause.

The magnetopause is the first barrier to energetic particles from the sun. Because of the magnetopause, most solar particles deflect around the Earth, but under appropriate conditions, some particles can pass through. Scientists are trying to understand the magnetopause and keep satellites, telecommunications and astronauts away from potentially harmful radioactive particles.

Scientists used data from THEMIS (Substorm History and Macroscopic Interaction) to find that when the magnetopause is hit by a plasma jet from the sun, it vibrates like a drum and waves move back and forth on its surface. The discovery came decades after this phenomenon was theorized. NASA says that when properly handled, waves in the magnetosphere can hear sound. Vibrations generated by waves penetrate the magnetosphere and trigger other types of waves, resulting in a space "symphony".

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