There are many wonders and curiosities present in the universe, which indicate the greatness of the Creator, and some believe that the universe in which we live consists only of the solar system that we know, which includes our planet Earth in addition to a number of other planets that revolve with it around the sun, but the truth of the matter is otherwise; The universe contains many other solar systems, which contain a much larger number of planets than we know, some of which are distinguished by a number of special characteristics that make them among the wonders of the universe.