https://www.vice.com/en_us/article/vb5w4d/nasa-is-going-to-test-drive-an-alien-hunting-robot-in-antarctica

NASA is gearing up to test drive a submersible robot underneath Antarctica’s sea ice, with hopes of eventually sending a similar machine to search for aliens in the subsurface oceans of Jupiter’s moon Europa.

The two-wheeled robot, which is called the Buoyant Rover for Under-Ice Exploration (BRUIE), uses buoyancy to anchor itself upside-down on the bottom edge of the ice. This distinguishes it from other free-swimming robot concepts designed to look for extraterrestrial marine life, such as the EurEx (Europa Explorer).