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New system allows cloud customers to detect program-tampering

Climate change may speed up forests’ life cycles

Creating new memories by directly changing the brain

Motorized microscopic matchsticks move in water with sense of direction

Life found in the sediments of an Antarctic subglacial lake for the first time

Connecting the classical and quantum worlds

Penn scientists demonstrate new method for harvesting energy from light

How much energy is required to store wind and solar power on the grid?