NASA wants to use a steam robot to explore the icy moons, which can be home to alien life.
The SPARROW robot uses steam traction to take off from its home base and explore the surface of the ice moon. In particular, it can be used to study the ocean under the ice of Europe, which astrophysicists consider as the most probable place of existence of life outside the Earth.
The Jet Propulsion Laboratory in Pasadena notes that researchers are developing a robot the size of a soccer ball, which is already named SPARROW (a steam-powered self-propelled robot for the ocean worlds). He will use steam traction to jump on the surface of Europe and Enceladus – he will have complete freedom to travel through inhospitable terrain.