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Earth's mysterious red glow, explained - Zoe Pierrat

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TEDEd Animation

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In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet’s surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. They tried looking at Earth with only this wavelength, and saw the planet covered in a red hue of varying intensity. So, what was going on? Zoe Pierrat explores the science of chlorophyll fluorescence.

The video mentioned scientists using fluorescence to track phytoplankton blooms and drought. What are some other ways we might be able to use chlorophyll fluorescence?

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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Zoe Pierrat
  • Director Denis Chapon, The Animation Workshop
  • Narrator Bethany Cutmore-Scott
  • Storyboard Artist Denis Chapon
  • Animator Denis Chapon
  • Compositor Denis Chapon
  • Art Director Denis Chapon
  • Composer André Aires
  • Sound Designer André Aires
  • Director of Production Gerta Xhelo
  • Editorial Director Alex Rosenthal
  • Producer Bethany Cutmore-Scott
  • Associate Editorial Producer Cella Wright
  • Production Coordinator Abdallah Ewis
  • Script Editor Emma Bryce
  • Fact-Checker Jennifer Nam

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