Can walls of oysters protect shores against hurricanes? Darpa wants to know.
Playing defense Reefense The project is one of three being developed under a $67.6 million program…

Playing defense Reefense The project is one of three being developed under a $67.6 million program…

As summer approaches, the threat of bushfires looms. Earlier this month, an out-of-control blaze in Sydney’s…

Enlarge Jason Edwards via Getty Earthquake scientists detected an unusual signal on monitoring stations used to…

Enlarge / Power lines are cast in silhouette as the Creek Fire creeps up on on…