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Article
Needle-like structures discovered on positively charged lightning branches
Lightning is a dangerous yet poorly understood natural phenomenon. Lightning forms a network of plasma channels propagating away from the initiation point with both positively and negatively charged ends—calle...
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Article
Correction: Corrigendum: A large light-mass component of cosmic rays at 1017–1017.5 electronvolts from radio observations
Nature 531, 70–73 (2016); doi:10.1038/nature16976 In this Letter, we omitted to cite preliminary results from the low-energy extension of the Pierre Auger Observatory, as presented at the International Cosmic ...
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Article
A large light-mass component of cosmic rays at 1017–1017.5 electronvolts from radio observations
High-resolution radio measurements of air showers—cascades of secondary particles in the atmosphere initiated by cosmic rays—reveal that cosmic rays with energies of 1017–1017.5 electronvolts have a mixed composi...