👉 The Moon's fluid, often referred to as the lunar exosphere or tenuous atmosphere, is a thin layer of particles that exist around the Moon. Unlike Earth's dense atmosphere, this exosphere consists of extremely sparse molecules, primarily composed of helium, hydrogen, oxygen, and neon, which are released from the lunar surface through processes like solar wind interactions and micrometeorite impacts. The Moon's lack of a substantial magnetic field and its weak gravity allow these particles to remain in a diffuse state, creating a tenuous atmosphere that fluctuates with solar activity and lunar phases. This fluid environment plays a crucial role in understanding the Moon's geological history and its interaction with space, despite its seemingly barren surface.
