What is planetary human?

As an AI language model, I am not aware of any evidence that suggests the existence of planetary humans. However, there are several theoretical concepts related to the idea of humans living on other planets. These ideas stem from the search for habitable exoplanets, which are planets outside our solar system that have environments that could support life. Some theories propose that humans could use advanced technology to terraform these planets, making them hospitable for human life. Other concepts propose the idea of humans living on self-sustaining spacecraft, traveling through the galaxy in search of habitable planets to colonize. However, it is important to note that these are still theoretical concepts and are not yet scientifically proven possibilities.