In Pictures: NASA’s coolest 'way-out' future proje...
Johns Hopkins University offered up PRIDE (Passive Radio Ice Depth Experiment) -- a concept for an innovative low cost, low power, low mass passive instrument to measure ice sheet thickness on outer planet moons, such as Europa, Ganymede, and Enceladus, some of which may harbor the possibility of life in under-ice oceans. The proposed instrument, which uses experimental techniques adapted from high energy physics, is a passive receiver of a naturally occurring signal generated by interactions of deep penetrating cosmic ray neutrinos. It could measure ice thickness directly, and at a significant savings to spacecraft resources.
In Pictures: NASA’s coolest 'way-out' future projects