Surreal! NASA shares DEAFENING screams of the Sun; Listen to the scary sound

The audio tech aboard the NASA Solar and Helioscopic Observatory (SOHO) has detected sound waves emerging from the Sun. It can drive anyone DEAF!

| Updated on: Mar 25 2023, 16:48 IST
Think you know our Sun? Check out THESE 5 stunning facts
Solar prominence
1/5 The Sun is the largest object in our solar system and is a 4.5 billion-year-old star – a hot glowing ball of hydrogen and helium at the center of the solar system. It is about 93 million miles (150 million kilometers) from Earth, and without its energy, life as we know it could not exist here on our home planet. (Pixabay)
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2/5 The Sun’s volume would need 1.3 million Earths to fill it. Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it. The hottest part of the Sun is its core, where temperatures top 27 million degrees Fahrenheit (15 million degrees Celsius). The Sun’s activity, from its powerful eruptions to the steady stream of charged particles it sends out, influences the nature of space throughout the solar system. (NASA)
Solar prominence
3/5 According to NASA, measuring a “day” on the Sun is complicated because of the way it rotates. It doesn't spin as a single, solid ball. This is because the Sun’s surface isn't solid like Earth's. Instead, the Sun is made of super-hot, electrically charged gas called plasma. This plasma rotates at different speeds on different parts of the Sun. At its equator, the Sun completes one rotation in 25 Earth days. At its poles, the Sun rotates once on its axis every 36 Earth days. (NASA)
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4/5 Above the Sun’s surface are its thin chromosphere and the huge corona (crown). This is where we see features such as solar prominences, flares, and coronal mass ejections. The latter two are giant explosions of energy and particles that can reach Earth. (Pixabay)
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5/5 The Sun doesn’t have moons, but eight planets orbit it, at least five dwarf planets, tens of thousands of asteroids, and perhaps three trillion comets and icy bodies. Also, several spacecraft are currently investigating the Sun including Parker Solar Probe, STEREO, Solar Orbiter, SOHO, Solar Dynamics Observatory, Hinode, IRIS, and Wind. (Pixabay)
Solar prominence
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Know all about the eerie sound of the Sun captured by NASA Solar and Helioscopic Observatory (SOHO). (NASA)

Last month, NASA made a remarkable discovery when it recorded the sound coming from RS Puppis, a Cepheid variable star which is located about 6,500 light-years away. But that's not all the sound we can hear from space. Our own star, The Sun, also makes a really eerie sound that is so loud it could even deafen everyone on Earth. This would happen if sound could propagate through space. But because it doesn't, we have never heard it before. But the NASA Solar and Helioscopic Observatory, a spacecraft tasked with monitoring the Sun, has captured the sound coming from it using an instrument known as Michelson Doppler Imager (MDI).

Posting the raw audio on YouTube, the official YouTube channel of NASA said, “These are solar sounds generated from 40 days of the Solar and Heliospheric Observatory's (SOHO) Michelson Doppler Imager (MDI) data and processed by A. Kosovichev”. It also highlighted the procedure used to process the sound. The unfiltered sound data was collected and then only the doppler velocity data that had been averaged around the solar disk was isolated. Further, various steps were taken to eliminate spacecraft motion noise and instrumental noise. Finally, the data was filtered at around 3mHz.

NASA SOHO shares the scary sound of the Sun

Interestingly, the sound of the Sun is extremely loud. The sound that reaches the Earth from the Sun has been calculated to be around 100 decibels by the time it reaches the Earth as per data from American Academy of Audiology. That means right next to the Sun, the sound will be so loud that it would instantly deafen a human ear. The intensity of the sound of the Sun was figured out by astronomers by recording acoustic pressure waves in the Sun.

Check the sound of the Sun below:

While listening to this sound is interesting, astronomers collect such sound waves to better understand the structure of the Sun. For example, using acoustic science, it was understood that the sound on the Sun is produced by constant flow of rising hot plasma near its atmosphere and subsequently cooling core.

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First Published Date: 25 Mar, 16:46 IST