we want to bring in jason ballard.a teamed up with a bunch of architectural firms to figure out ways of -- how you build stuff, either thereon mars, or build the tier and get -- build it here and get it to mars. we are talking about 3d printing , and creating structures we can use on the martian planet, should we ever get there, or when we get there, i should say. how far away are rewrite now from knowing what structures we can use and what will hold up for the environment there? >> construction scale 3d printing is maturing quite rapidly on earth. we have delivered dozens of permitted projects here on earth and how housing projects we will be building in the next 12 months, but we have also made a connection with the nasa program, not only with the artemis program, but with the johnson space center. you are seeing a project we did where we delivered a mars analog habitat that crews will live in for a year at a time to simulate the kind of environment robotically, using the materials found on the moon surface, or in th