The most recent winner was Michele Dougherty , who was awarded the medal `` for innovative use of magnetic field data that led to discovery of an atmosphere around one of Saturn 's moons and the way it revolutionised our view of the role of planetary moons in the Solar System '' . The most recent recipient was Michele Dougherty , who was awarded the medal `` for innovative use of magnetic field data that led to discovery of an atmosphere around one of Saturn 's moons and the way it revolutionised our view of the role of planetary moons in the Solar System '' .