Original title: The first discovery in the world! Come and listen to the "space sound" 160,000 kilometers away from the earth

What kind of sound will the earth's magnetic lines be plucked by charged particles in the universe like strings?

The scientific research team from Beijing University of Aeronautics and Astronautics recently released a latest research result. They discovered the "space sound" in the world for the first time in the world, and discovered a new sound wave generation mechanism, breaking through the traditional cognition of the global scientific community in the field of space sound wave research for more than 70 years.

Beihang team discovered the "space sound" in distant space for the first time

Experts introduced that "space sound" is scientifically called "sonic sound" and is an electromagnetic wave. Traditional viewpoints believe that its production is related to the Earth's magnetic field. If the magnetic line of the Earth's magnetic field is imagined as strings fixed at both ends in the north and south magnetic poles of the Earth, when the energy of the solar wind reaches the earth, it interacts with the Earth's magnetic field, which stimulates electromagnetic waves with frequency characteristics similar to the ensemble sound of birds in the early morning.

Academician of the Chinese Academy of Sciences, Cao Jinbin, School of Space and Earth Sciences, Beijing University of Aeronautics and Astronautics: Space Combination is a low-frequency electromagnetic wave in space, and its frequency can range from one hundred Hz to several thousand Hz. Because its spectrum characteristics are very similar to the spectrum characteristics of bird songs we usually hear on the ground, we call it space sound.

Since the 1950s, scientists related to space exploration around the world have conducted a large number of observations and research on Sound waves, believing that Sound waves mainly occur in the Earth's dipole magnetic field area in near-Earth space.

Beihang's scientific research team used massive data collected by a scientific detector over several years to discover the combined sound waves 160,000 kilometers away from the earth for the first time. At the same time, it also discovered a new combined sound wave generation mechanism, breaking through the traditional cognition that has lasted for more than 70 years in the global scientific community.

Liu Chengming, associate professor at the School of Space and Earth Sciences, Beijing University of Aeronautics and Astronautics: For seventy years, everyone believes that this wave can only exist in near-Earth space. In the dipole magnetic field area of ​​the earth, there can only exist this area near the synchronous orbit. No one has ever thought about whether this wave can be further away, because this understanding has been long and deeply rooted.