Definition: Abluvion is a term that refers to the process by which an alien species enters Earth’s atmosphere, typically as an astronaut or other space traveler who has landed on Mars. The term comes from the ancient Greek words "ablu" (which means "to ascend" in English) and "voyi" (which means "to land") as it implies that the aliens have reached a high altitude above Earth's surface before descending. The exact nature of an abluvion is not completely clear, but there are several theories proposed by scientists. Some believe that abluvion could be caused by an asteroid or comet passing close to Earth. Others propose that abluvion might occur due to gravitational collapse in the core of a newly formed planet. There is also speculation that abluvion may involve the release of a "halo" around Earth, which could cause it to move and change course. The term "abluvion" has been used by NASA and other space agencies to describe the process of entering space during missions such as Mars exploration.

abluvion