Ice giants are a type of planet that primarily consists of water, ammonia, and methane ices. They are distinct from gas giants, which are mostly made of hydrogen and helium. The two most well-known ice giants in our solar system are Uranus and Neptune. These planets have thick atmospheres and are characterized by their cold temperatures and unique blue colors, which result from the presence of methane. Unlike terrestrial planets, ice giants have no solid surface and possess deep atmospheres that transition into liquid and icy interiors. Their magnetic fields are also tilted compared to their rotational axes, leading to unusual magnetic environments. Ice giants play a crucial role in understanding planetary formation and the diversity of planetary systems beyond our own.