Ice giants are a type of planet primarily composed of substances like water, ammonia, and methane, which exist in solid or liquid form. The two main examples of ice giants in our solar system are Uranus and Neptune. Unlike gas giants, they have a smaller proportion of hydrogen and helium, giving them a unique composition and structure. These planets are characterized by their cold temperatures and thick atmospheres, which contain clouds of ice and gas. Ice giants also have complex weather systems and strong winds, with Neptune exhibiting the fastest winds in the solar system. Their intriguing features make them important subjects of study in planetary science.