Space station SPHERES run circles around ordinary satellites

These are, in fact, the droids that NASA and its research partners are looking for. Inspired by a floating droid battling Luke Skywalker in the film Star Wars, the free-flying satellites known as Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) have been flying aboard the International Space Station since Expedition 8 in 2003.

Engineers find new way to target cancer

For ten years, it's been known that RNA interference could potentially kill cancer by shutting off malfunctioning genes - but there's been no  efficient way to deliver the RNA.

NASA links SPHERES robots to Android smartphones

If you thought little Android helpers only came in the form of green robots, think again.