Experiments shine light on exotic cosmic rays

The Earth is under constant bombardment by subatomic particles called cosmic rays, including some, known as ultra-high-energy cosmic rays, which pack much more punch than the world's most powerful particle accelerators. Fortunately, Earth's atmosphere protects us by dissipating most of that energy before it reaches the ground. An illustration of “air showers” that result when ultra-high-energy cosmic rays strike the top of the...

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Via: The Archaeology News Network