Spotting The Mysterious Green Flash

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A green flash can be observed at sunset or sunrise, although sunset sightings are most common. It's best seen from a place with an unobstructed view of the horizon. Green flashes result when the atmosphere reflects the sun's light, functioning as a prism and splitting the light into different colors. The short wavelengths of blue and violet light are scattered by various molecules in the atmosphere, leaving the green glow that appears for only a second or two. Learn more about the mysterious green flash with these videos.

See The Green Flash

The optical phenomenon is caught on tape.

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Key Facts In This Video

  1. If you look at a highly magnified sunset, you can make out a thin green rim around its top. 00:42

  2. To catch a green flash at sunset, wait until the sun begins to dip below the horizon. 01:56

  3. Watch a green flash as it's captured on camera: 02:40

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