Cosmic rays from the galaxy help track retreat of glaciers on Earth

By Lakshmi Chandrasekaran Cosmic rays, hurling across the galaxy near light-speed, generate a time machine on Earth for us to measure the retreat of the glaciers and the pace of climate change. Ph.D. student Peter Strand, at the University of Maine, drilled samples of quartz from boulders in Mongolia’s Altai Mountains this summer to tap […]