LifeShark-free world? That's a wish that would come back to bite us Sharks may be hard to love for many people, including the US president, but these animals are essential to the health of our oceans, says Lesley Evans Ogden Comment
TechnologySpy balloons flying 40km up track drug smugglers on the ground The US military are testing uncrewed balloons filled with helium that can keep watch over a small area by catching different winds in the stratosphere News