Solar Symphony: Listening to the Sun’s hidden “music”

太阳交响曲:聆听太阳隐藏的“乐章”

Twenty Thousand Hertz

音乐

2025-02-19

37 分钟
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What sound can teach us about our Sun? In this episode, we explore how NASA scientists translate electromagnetic waves from the Sun into sound, and even music. Through this process, researchers are gradually unlocking the Sun’s secrets, from the steady “hum” of the star’s rotation, to the way that solar winds “play” the Earth’s magnetosphere like a harp. This story comes from the podcast NASA’s Curious Universe, and features Host and Astrophysicist Padi Boyd, Sonification Specialist Robert Alexander and Heliophysicist Mike Hartinger.  Explore the all new Defacto Sound website, and click the Contact Form to get in touch. If you know what this week's mystery sound is, tell us at mystery.20k.org. Follow Dallas on Instagram, TikTok, YouTube and LinkedIn. Join our community on Reddit and follow us on Facebook. Subscribe to NASA’s Curious Universe wherever you get your podcasts. Get 50% off your first meal box plus free shipping at factormeals.com/factorpodcast. Get an exclusive 60% discount on Incogni and a 30-day money-back guarantee at incogni.com/20k. Claim your $75 sponsored job credit at indeed.com/hertz. Download the CFO's Guide to AI and Machine Learning at netsuite.com/20k. Learn more about your ad choices. Visit megaphone.fm/adchoices
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  • You're listening to 20,000 Hz.

  • Hi, I'm Dallas Taylor.

  • As a sound fanatic, one of my pet peeves is the common misunderstanding about data sonification.

  • That's when scientists turn information like numbers or measurements into sound.

  • The creepy soundscape you're hearing right now is a sonification of radio emissions from the auroras on Saturn, which are similar to the northern lights here on Earth.

  • These signals were captured by the Cassini spacecraft in 2002.

  • But here's the radio waves are not sound.

  • They're a type of energy, like x rays or microwaves, and they don't create vibrations in the air like sound does.

  • In this case, these waves were oscillating between 30,000 and 80,000 cycles per second.