I read that "Moon Dust" is ranked by NASA as the number one challenge to building a permanent lunar base. Wouldn't it be possible, though, to send some type of lunar excavators to clear a large zone of all lunar dust before sending any other equipment? Since there's no wind on the moon, there's no way for the dust to move on its own once it's settled. Is the layer of dust too thick (all over the moon) for this to be practical?
Clearing away all the dust is more difficult than it sounds.
It's not a neat dust layer on a solid floor, particles of all sizes are mixed with each other. There are lots of nooks and crannies you can't reach with a brush.
the dust carries an electrostatic charge, making it difficult to handle (it sticks to everything including your cleaning implement).
Meteorite impacts spread new dust around, so your work is never done.
There may be another dust transport mechanism: small dust can levitate and come down somewhere else.