image: Researchers prepare the GPS sensors for deployment on Helheim Glacier, Greenland. This material relates to a paper that appeared in the June 26, 2015, issue of Science, published by AAAS. The paper, by T. Murray at Swansea University in Swansea, UK, and colleagues was titled, "Reverse glacier motion during iceberg calving and the cause of glacial earthquakes." view more
Credit: [Credit: Nick Selmes, Swansea University]