NASA's plans to explore the ice moons of the Solar System are getting more detail as the space agency is developing a robot that would use steam to power itself in deep space. "The terrain on Europa ...

A bouncing, ball-like robot that’s powered by steam sounds like something out of a steampunk fantasy, but it could be the ideal way to explore some of the distant, icy environments of our solar system ...

Philip Metzger has a vision. The 30-year NASA veteran wants to unleash a fleet of hopping robots — tiny spacecraft that would ply the solar system, map distant worlds and prepare them for the arrival ...

In this artist's concept, a SPARROW robot uses steam propulsion to hop away from its lander home base to explore an icy moon's surface. NASA/JPL-Caltech NASA’s plans to explore the ice moons of the ...