The article mainly talks about temperature control but the other big reason to bury a lunar base is concerns about radiation.  On Earth we have a big magnetic field to protect us from charged particles (like the helium-3 that ends up in lunar regolith) and an atmosphere to protect us from cosmic rays.<p>The ISS gets the full dose of cosmic rays being outside the atmosphere but those aren&#x27;t that large a risk.  For charged particles the ISS sits inside the inner Van Allen Belt which is the layer of charged particles that have been trapped by Earth&#x27;s magnetic field.  So astronauts are safe from all the high speed electrons and atomic nuclei that you&#x27;d have to endure during the day on the Moon&#x27;s surface.