Which phrase of matter is the rarest in the solar system?

Answer 1

The rarest phase of matter in the solar system is likely plasma, which is a state of matter where gases are ionized and consist of charged particles. While plasma is abundant in stars, including our Sun, it is less common elsewhere in the solar system, particularly on solid bodies like planets and moons. Most matter in the solar system exists as solids, liquids, or gases, making plasma a relatively rare occurrence outside stellar environments.