Particle Physics

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effects of radiation on the brain

BRAIN ZAP  After radiation exposure, mouse dendrites (green) in the medial prefrontal cortex were shorter and branched less than those of mice not exposed to radiation, as seen in this digital reconstruction. Exposed dendrites also had fewer docking sites (red) that detect messages from other cells. 

Lightning illuminates the sky during a storm in Weld County, Colo.

ELECTRICAL SURGE  Lightning illuminates the sky during a storm in Weld County, Colo. Researchers at LOFAR in the Netherlands developed a new technique to expose the conditions inside thunderclouds that lead to lightning strikes.

The AMS on the ISS

COSMIC RAY COLLECTOR  The Alpha Magnetic Spectrometer (center) analyzes speedy cosmic particles from its perch on the International Space Station. New results may complicate scientists’ understanding of where the particles come from.

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