NASA concept proposes swarm of swimming robots to explore alien oceans

Subsurface oceans on gas giant moons are some of the most promising places to look for life beyond Earth. 

swimming robots that would explore these alien oceans for signs of extraterrestrial life

Jupiter’s moon Europa and Saturn’s moon Enceladus are basically big icy balls, with global oceans underneath a thick frozen outer shell.

 Scientists have long hypothesized that conditions in those waters could be prime candidates for harboring alien life,

 new concept could investigate up close using a fleet of smartphone-sized swimming robots

Each SWIM robot is wedge-shaped, measures about 12 cm (5 in) long, and is equipped with its own propulsion system,

These robots could move through the water like a school of fish, collecting data to search for biomarkers of life. 

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