Preserve

. New research shows that penguin guano in Antarctica is an important source of ammonia aerosol particles that help drive the formation and persistence of low clouds, which cool the …

. The privacy-minded Signal messaging service is putting a blindfold on the prying eyes of the newly returned Windows Recall, an AI-powered feature from Microsoft that takes a screenshot of whatever you’re doing …

. A group of Claflin University students were perusing old campus photos when one image caught a student’s eye—it was a picture of his grandmother from her college days. He …