"Grays" are often described as extraterrestrial beings that are commonly reported in UFO sightings and abduction stories. They are typically depicted as having small bodies, large heads, and big black eyes. Their skin is usually described as grayish in color, which is how they got their name. The concept of Grays has been popularized in various forms of media, including movies and books, contributing to the public's fascination with UFOs and aliens. While many people believe in their existence, there is no scientific evidence to support the claims of encounters with these beings.