Solid State Quantum Magnetometers—Seeking out water worlds from the quantum world

However, looking beneath the miles-thick ice crusts of these planetary bodies with conventional remote-sensing instruments, like cameras and radar, is challenging. Until we can send landers or rovers that drill or melt through the ice, we can use other techniques to track down these enormous, but elusive, water bodies. One method—Magnetometry—stands out since magnetic fields penetrate solid material and can therefore provide information about the interior of planet-sized bodies.