Mini NASA Robot Takes a SWIM

A 16.5-inch-long prototype of a robot designed to explore subsurface oceans of icy moons is reflected in the water’s surface during a test in a competition swimming pool in September 2024. Conducted by NASA’s Jet Propulsion Laboratory, the testing showed the feasibility of a mission concept called SWIM, short for Sensing With Independent Micro-swimmers. The project envisions a swarm of dozens of self-propelled, cellphone-size robots looking for signs of life on ocean worlds. SWIM is funded by NASA’s Innovative Advanced Concepts program under the agency’s Space Technology Mission Directorate.

Learn more about the next generation of robotic concepts that could potentially plunge into the watery depths of Europa and other ocean worlds.

Image credit: NASA/JPL-Caltech