NASA successfully deciphered mysterious sounds in space more than 60 years ago

For decades, the mystery of the sound "Whistler waves" emanating from the universe has made the scientific community "crazy" to decode.

which the scientist calls "Whistler waves" was obtained by ultra-sensitive radio devices in the 1950s.

Strange sound "Whistler waves" - Scientist challenge for nearly 7 decades.(Source: NASA).

After years of mystery, experts from the US Space and Space Agency (NASA) also found answers.

According to NASA, "Whistler waves" is actually an object made up of sudden explosions of electrons in the Earth's magnetic field. The explosion causes electrons to move at lightning speed and creates a series of bizarre sounds from space.

The study is published in Geophysical Review Letters, after researchers collected data from two Van Allen Probes missions (NASA) and FIREBIRD II CubeSat (University of Minnesota). , America).

To achieve this result, the University of Minnesota satellite is flying at a height of 500km above the ground, while NASA's satellite is flying in the region.

Specialist Aaron Breneman of the University of Minnesota said: "To observe the sequence of events occurring between waves and electrons occurring in space requires constant observation of two or more satellites / spacecraft. "These satellites must be distributed in a remote location. Two NASA satellites and the University of Minnesota have done that and successfully deciphered the mystery of sound for nearly seven decades."

Photo of the construction of Van Allen's Radiant (blue) Belt.The radiation belt consists of two layers: The outer layer consists of protons and the inner layer of electrons.(Source: Tony Phillips / NASA).

Scientists say, outside the space surrounding the Earth is not an empty space but a "field" of particles with high charge. The electrons, protons and atomic ions are trapped in the Earth's magnetic field, forming the belt that the scientific world calls Van Allen .

Van Allen radiation belt was discovered in 1958, is a space at an altitude of 1,000 - 60,000 km, surrounding our Earth with different levels of radiation.

So far, Van Allen still contains many mysteries that scientists cannot explain.

What is Van Allen radiation belt?

Van Allen belt was discovered by American space expert James Van Allen in 1958, this is an outer space of the Earth, the position is relatively above the South Atlantic sea, from an elevation of about 1,400 m to 40,000m. This is the area with high density of electronic particles, protons coming from the Sun and being retained by the Earth's magnetic field. The belt has 2 zones, a quiet distance apart:

1. The inner belt ranges from about 1400m to 13000km.
2. The outer belt ranges from about 19000km to 40000km.

So far this is still a mysterious area, scientists are investigating what happens here, predicting the theory that the region often occurs changes in space and time.