A pair of NASA astronauts has unveiled a design for an innovative space tug that could one day save the world by nudging a potentially threating asteroid out of the Earth's path.
New research demonstrates that sensor networks in remote locations could be powered by using wind power.
An autonomous robot has found life in one of the most lifeless places on Earth: the Atacama desert in northern Chile, thought to be a close analogue of Mars's arid surface.
Scientists have witnessed an atom and a photon - a small packet of light - share the same information. This is an important milestone in the quest to create a 'quantum computer', which could operate much faster than conventional computers.