Planetary scientists from the University of California, Berkeley, have proposed a new theory about the interiors of Uranus and Neptune. They suggest that these ice giants have layered structures, with a water-rich layer beneath their thick atmospheres and a deeper layer consisting of a compressed mixture of carbon, nitrogen, and hydrogen. Computer simulations revealed that the extreme conditions within these planets cause water, methane, and ammonia to separate into distinct layers due to the expulsion of hydrogen from the deeper layers. These immiscible layers explain the unusual magnetic fields observed in Uranus and Neptune, which differ from Earth's dipole magnetic field. The absence of a dipole field in the ice giants indicates a lack of large-scale convection in their interiors, leading researchers to propose the existence of non-mixing layers. Previous attempts to explain this phenomenon had failed until Burkhard Militzer, the lead scientist, successfully used machine learning to model the behavior of atoms under high pressures and temperatures. The study revealed that the hydrogen expulsion increases with depth, forming a stable stratified layer that inhibits convective movement, thereby producing the disorganized magnetic fields seen in Uranus and Neptune. This groundbreaking research opens new avenues for understanding the internal structures of ice giants and potentially similar planets in other star systems. It challenges previous theories and provides crucial insights into the complex dynamics that shape planetary magnetic fields.