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The sound of the Sun released by space agencies is not a direct audio recording, but a conversion of solar light wave vibrations into audible sound. Because outer space is a vacuum with no air, sound vibrations cannot travel through space to reach our ears.

How sound travels

• Clapping hands or moving an object causes surrounding air molecules to vibrate.
• These vibrating air molecules travel outward through the air until they reach our ears.
• When the vibrations strike the eardrum, the human body detects them as sound.
• Because outer space contains no air to carry these vibrations, sound cannot travel across space.

How the Sun creates vibrations

Deep inside the Sun, immense pressure forces hydrogen atoms to crash into one another and fuse into helium atoms. This process, known as a nuclear fusion reaction, releases tremendous amounts of light energy and heat energy. Much like water bubbling and shaking on the surface of a boiling pot, these violent internal reactions push material outward and create constant ripples and waves across the Sun's surface.

How solar sound is created

• Because the Sun's surface ripples continuously, the light it emits is never completely steady.
• A spacecraft called the Solar and Heliospheric Observatory carries an instrument known as a Dopplergram to track these light wave variations.
• Scientists take the data recorded from these shifting light waves and translate them into audio frequencies that humans can hear.
• NASA compressed forty days of solar data into a short clip of a low humming sound, rather than capturing a live audio feed.

Why scientists study solar sound

Scientists have no physical devices that can enter the Sun to inspect what takes place inside its fiery core. Converting light wave ripples into audio gives researchers a reliable method to study internal explosions, movement, and the different layers forming the Sun. This scientific process also shows that viral claims of the Sun naturally chanting words like Om are false, since the released audio is merely processed data sped up thousands of times.