The subsurface oceans of the icy moons of Saturn and Jupiter remain our best bet for finding life elsewhere in the solar system. NASA is developing a roadmap for cryobots that could investigate these ocean worlds.

NASA outlines plan to deploy burrowing 'cryobots' on icy moons of Saturn and Jupiter

Source: space
Source Link: https://www.space.com/cryobots-ocean-worlds-subsurface-seas-nasa