Death Valley’s mystery solved

The rocks move about 15 feet (5 meters) per minute,according to the report. Richard Norris, 55, a paleobiologist at Scripps, and James, 59, a research engineer, launched their 'Slithering Stones Research Initiative' in 2011, the Los Angeles Times reported. After getting permits from the National Park Service,they installed a weather station in the area and placed 15 stones equipped with global positioning devices on the playa.