Video technology and science converge on an active volcano in Vanuatu, where explorer Sam Cossman operated camera-mounted drones to capture high-definition images of the spectacular yet dangerous Marum Crater. Cossman and his team piloted the drones over the 7.5-mile-wide (12-kilometer) caldera while confronting toxic gases and boiling lava. Although two drones succumbed to the harsh…

All the seemingly crazy behaviors of teenagers, they aren’t just there to annoy parents – they might serve a real evolutionary purpose. Subscribe! http://bit.ly/1fUWHyY Not only are the brains of teenagers still developing, but different regions of the brain are changing at different rates, with important consequences. Adriana Galván, associate professor of Psychology at UCLA…