Solar sailing has moved from science fiction concept to working hardware, and now a new generation of entrepreneurs wants to turn that gentle push of sunlight into a commercial engine. Instead of ...

Testing has started at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on a concept for a potentially revolutionary propulsion system that could send spacecraft to the edge of our solar ...

In days gone by, explorers traveled into the unknown by sailing on the wind, and the robotic explorers of the future may do some sailing of their own. NASA is on the verge of launching a ...