The Habitats on the Lunar Surface

What we can do on the lunar surface is a lot different than what we're looking at for mars. Even just the sand, which we call regulus on the moon, is quite a bit more dangerous. So that types of material considerations that you have to put into building lager structures is very different. We also are looking at something called i s argu, which is insitu resource utilization. And that's, how do we utilize the resources on any of these celestial bodies to help us out in what we're doing?