Unveiling the evolution and formation of icy giants

• ATMOSPHERE: What is the composition of the atmosphere? What are the drivers of atmospheric chemistry? What are the atmosphere dynamics? • INTERIOR: Why is the heat flux lower than expected? What are the implications for the interior and thermal evolution of the planet? Why does Uranus have such a strong intrinsic magnetic field? How do its characteristics constrain the interior? Is there a rocky silicate core? • URANIAN SYSTEM: What is the origin and evolution of the Uranian moons? What is the internal structure, composition and current thermal state of the moons? How have the Uranian rings formed and evolved? What governs the dynamics of the Uranian rings? • MAGNETOSPHERE: How is plasma produced and transported in the magnetosphere? What are the dynamics of the uniquely configured Uranian magnetosphere and its interaction with the Solar Wind?