BRUIE
BRUIE is an autonomous underwater vehicle prototype by NASA's Jet Propulsion Laboratory. The prototype began underwater testing in 2012 and it is meant to eventually explore the interior of water worlds in the Solar System, such as Europa or Enceladus.
Overview
On Earth, aquatic life is often found at the ice-water interface, so researchers designed the robotic rover to be buoyant and use its two wheels to roll along beneath the ice and look for life or their biosignatures. Scientists can also learn a lot from the topography of the underside of the ice, including how the ice forms. And the ice can act as a trap for gases, either from biological or geological processes.The first BRUIE prototype began testing in 2012 in an Arctic lake in Alaska, and in Antarctica in 2019. The principal investigator is Andy Klesh at JPL; the co-investigators are Kevin Hand, Dan Berisford, John Leichty and Josh Schoolcraft. Astrobiologist Kevin Hand at JPL is the lead scientist.
Description
The rover resembles a bar long, with two large studded wheels at each end. BRUIE features cameras, lights, and eventually it will be equipped with wireless communication to remotely navigate autonomously without a tether. It can also carry some scientific instruments, which would be incorporated later if preliminary testing goes well.BRUIE uses buoyancy to remain anchored against the ice and resist water currents. The sealed air-filled cylindrical body, along with closed-cell foam inside of cone-shaped wheels, provides buoyancy force to enable roving along the underside of the ice. In can safely power down to save battery, turning on only when it needs to take a measurement, so it could spend months observing the under-ice environment at time intervals.