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[The Science of Auroras: From Solar Burps to 'Steve']-[WeWow on the Weekend (8/10/24)]

Wow in the World · B1 · 2024-08-10

Preschool Enlightenment
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📋 Summary

Exploring the Wonders of the Sky: Auroras and Citizen Science

In this episode of Wow in the World, the hosts delve into the fascinating natural light shows known as auroras, while introducing a unique, newly discovered phenomenon affectionately named "Steve."

The Anatomy of an Aurora

To understand why the sky lights up in vibrant colors, we must look to the sun. The process begins with what the hosts call a "solar burp," scientifically known as a coronal mass ejection. During these solar storms, the sun releases massive amounts of gases containing highly charged particles called electrons.

These electrons travel through the solar system at incredible speeds—roughly one million miles per hour—and eventually reach Earth. Guided by the planet’s magnetic poles, these particles crash into oxygen and nitrogen atoms in our atmosphere. This collision produces the breathtaking colors we see: oxygen atoms create green and red hues, while nitrogen atoms contribute blues and purples. While the Aurora Borealis occurs in the Northern Hemisphere, its counterpart, the Aurora Australis, graces the Southern Hemisphere.

Meet 'Steve': A Scientific Mystery

During their observation, the hosts encounter a distinct purple light formation that differs from the traditional aurora. This is identified as STEVE (Strong Thermal Emission Velocity Enhancement). Unlike standard auroras, STEVE is related to a phenomenon called subaural ion drift (SED), where magnetic fields rearrange and charged particles scatter in the atmosphere at much lower altitudes.

The Power of Citizen Science

The discovery and study of STEVE highlight the incredible impact of citizen science. Researchers like Dr. Elizabeth McDonald and Dr. Eric Donovan were able to decode the nature of STEVE by analyzing photographs submitted by everyday people. By combining this crowd-sourced data with satellite imagery, scientists gained insights into a phenomenon that was previously poorly understood. As the hosts emphasize, citizen scientists are "everyday people" who contribute valuable data to "big science projects," proving that curiosity and a camera can lead to significant scientific breakthroughs.

Membership and Updates

Beyond the science, the episode features a lighthearted segment where Dennis, the president of the World Organization of Wowzers, announces a limited-edition membership kit. The episode also reminds listeners of the upcoming 250th-anniversary musical episode and various holiday-themed content, encouraging families to engage with the Wow in the World community through the Tinkercast platform.

🎯Key Sentences

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It's going to be a November to remember.
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But for now, let's get on with the show.
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we have a lot of things we have to get to today.
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I'm an excellent packer.
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Well, I think it's certifiably gross.
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📝Key Phrases

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music to your ears
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get on with the show
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a November to remember
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chit chat
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add a little ... to the mix
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📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.
Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.
Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.

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