The Wikipedia article on "Atmosphere of moon" says:
One source of the lunar atmosphere is outgassing: the release of gases such as radon and helium resulting from radioactive decay within the crust and mantle. Another important source is the bombardment of the lunar surface by micrometeorites, the solar wind, and sunlight, in a process known as sputtering.
- be re-implanted into the regolith as a result of the Moon's gravity;
- escape the Moon entirely if the particle is moving at or above the lunar escape velocity of 2.38 km/s (1.48 mi/s)
- be lost to space either by solar radiation pressure or, if the gases are ionized, by being swept away in the solar wind's magnetic field.
This seems to imply that the solar wind hits the surface of the moon. My question is, given that atmosphere of the moon is so thin, with the molecules normally missing each other completely, does the solar wind blow through it, i.e. do the particles of the solar wind usually hit the moon before/without hitting any particle of the exophere.