Gamma-Ray Earth and Sky
Earth is actually the brightest source of gamma-rays, the most energetic form of light.
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This view is from the orbiting Fermi Gamma-ray Space Telescope’s Large Area Telescope. It shows the Earth’s gamma-ray glow flooding the edges of field. As NASA points out, Earth is actually the brightest source of gamma-rays, the most energetic form of light.
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Image Credit: International Fermi Large Area Telescope Collaboration, NASA, DOE
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