Chorus of plasma waves around the Earth

The action of plasma waves can produce strange sounds that surround the Earth.

Using a probe flying around the Earth to study Van Allen's radiation belt, scientists at the US Aerospace Agency (NASA) have heard strange sounds created by plasma waves. in the sky.

The universe is not completely empty, it contains charged particles carrying the energy dominated by magnetic fields and electric fields, which works unlike anything we see on Earth, according to NASA.

In areas with magnetic fields, such as the space around the Earth, charged particles move back and forth through the movement of different electromagnetic waves called plasma waves. These plasma waves produce rhythmic noise, which is captured by special tools.

The type of plasma wave that has a great impact on the environment near the Earth is a Whistler Wave . These waves produce different sounds but move in the same way, with the same electromagnetic properties. When lightning strikes the ground, the discharge process can also trigger a whistling plasma wave.

Outside the plasmasphere , where plasma currents are thinner and relatively warm, plasma waves sound like a flock of noisy birds. This type of wave is called a choir (Chorus). Plasma waves moving inside the plasma floor produce a sound like wind blowing called Hiss waves .

By understanding the interactions between waves and particles in space, scientists can learn how electrons accelerate and disappear in the radiation belt, thereby helping to protect telecommunications satellites in space. .