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    The Missing Link between Exploding Stars, Clouds, and Climate on Earth

    December 20, 2017, Categories  Astronomy/Space

    Cosmic rays interacting with the Earth's atmosphere producing ions that helps turn small aerosols into cloud condensation nuclei -- seeds on which liquid water droplets form to make clouds. A proton with energy of 100 GeV interact at the top of the atmosphere and produces a cascade of secondary particles who ionize molecules when traveling through the air. One 100 GeV proton hits every m2 at the top of the atmosphere every second. Credit: Illustration: H. Svensmark/DTU

    Cosmic rays interacting with the Earth’s atmosphere producing ions that helps turn small aerosols into cloud condensation nuclei — seeds on which liquid water droplets form to make clouds. A proton with energy of 100 GeV interact at the top of the atmosphere and produces a cascade of secondary particles who ionize molecules when traveling through the air. One 100 GeV proton hits every m2 at the top of the atmosphere every second. Credit: Illustration: H. Svensmark/DTU

    Breakthrough in understanding of how cosmic rays from supernovae can influence Earth’s cloud cover and thereby climate...

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