Editing Openai/67b71e2c-cc10-8008-9939-dfe494d1384d (section)

==== 1. Surface Charging and the Lunar Terminator Because the Moon has no global magnetic field or substantial atmosphere, its surface is directly exposed to the solar wind and to ultraviolet (UV) radiation. This exposure can lead to strong electrostatic charging of the surface, especially around the day/night boundary (the “terminator”), where the electric fields can be large. The theory is that these electric fields may loft small grains (sub-micron to a few microns in size) off the surface into the lunar “exosphere” or transport them short distances along the surface. ====
# Apollo-Era ‘Horizon Glow’ Observations Astronaut sketches and cameras on Surveyor landers showed a slight “horizon glow” just after local sunset, suggesting dust grains might have been suspended above the surface. At the time, electrostatic lofting was one of the leading explanations for this phenomenon.