The robots that will sweep Earth’s skies

After six years in space, China's first orbital station, the Tiangong-1 (aka the "Heavenly Palace") has finally outlived its operational limits and begun its descent back to Earth. It's expected to re-enter the atmosphere in a few months, whereupon a...

Will we be able to control the killer robots of tomorrow?

From ship-hunting Tomahawk missiles and sub-spying drone ships to semi-autonomous UAV swarms and situationally-aware reconnaissance robots, the Pentagon has long sought to protect its human forces with the use of robotic weapons. But as these systems...