Geologists dig into Grand Canyon's mysterious gap in time

Using Gallup data from 146 countries (N > 1,350,000), a new study finds over a quarter of the world's people are in physical pain: "Physical pain is lower in a boom and greater in an economic downturn....increases in pain are borne almost exclusively by women and found principally in rich nations."

Tyrannosaurus rex’s Jaw Tip May Have Played Essential Role as Sensitive Tactile Sensor

Millennium Space in an experiment de-orbited a satellite in eight months. Tethers’ tape creates additional surface area that interacts with the Earth’s atmosphere to create drag, which draws satellites back to Earth faster. The tape is deployed when a satellite is ready to de-orbit.