In the void of space, silence reigns. But when space isn’t completely empty…NASA invites us to listen to the wonderful symphony playing between the Sun and the Earth. And why, make some unexpected discoveries.
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[EN VIDÉO] Sounds of Space Sounds of Space: This headline from Space Magazine (on Euronews) makes you hear…
“In space, no one can hear you scream. » We all know this hook. thatAlien, 8the Travelers. A science-based hook. Because sound does not travel in the vacuum of space. Nevertheless, NASA asks us today to lend an ear to hear the song of the Sun and the Earth. As part of a citizen science project called HARP ((Heliophysics Applied: Vibrations in Plasma).
How is that possible? Because the space between the sun and the earth is not completely empty. It is also filled with a soup of charged particles. Plasma blown by the solar wind. When it encounters the magnetic field around our planet, its lines vibrate. Like the plucked strings of a harp. But the symphony thus created is at a frequency too low for our ears to hear.
The human ear listens to space
Since 2007, five NASA satellites of the THEMIS mission – for Time history of events and macroscale interactions during substorms – Record the lute of the Earth’s magnetosphere. Researchers have now converted these ultra-low frequency waves into sounds we can hear. The sounds undoubtedly conceal important information about the near-Earth space environment and our relationship to our Sun.
“Human hearing is an incredible instrumentMartin Archer, a member of the harp group at Imperial College London (UK), explains. NASA press release. From birth, we are trained to recognize patterns and pick out different sound sources. We can naturally do some pretty crazy analysis that surpasses even some of our most advanced computer algorithms.” During the last project, high school students were already using data from NOAA satellites (National Oceanic and Atmospheric Society), a new plasma wave pattern related to solar storms. By opening Harp’s data to the world, to very different ears, the researchers hope to discover things they never thought possible before.
To participate in the adventure, through it Here.