Incredible footage of a sunset over the Grand Canyon in Arizona bathes the canyon in yellow and orange against the darkening blue sky.

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Abstract: Experiments which observe coherent radio emission from extensive air showers induced by ultra-high energy cosmic rays are designed for a detailed study of the development of the ...

Abstract: ATLAS is one of two general-purpose detectors at ... Following this period, ATLAS continued to collect cosmic-ray events for detector alignment and calibration as well as for commissioning ...

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