As discussed in the posts Future buildings and underground habitats – architect Dominique Perrault and Underground Mars bases – ZA Architects also followed up in my art Dimensionalism: Underground City structures underground habitants for human survivability could be a general calling, not confined entirely to interplanetary colorization. My opinion on the planned Mars mission is a waste of time and money, due to the fact that our current rocket propulsion and the length of time of travel (approximate three years to and from the red planet) – makes it a pipe dream. Also there are pending issues that will confront humanity far sooner than a conquest of our nearest planet. The Moon should be explored and utilized as area for humanity.
“Data from NASA’s Gravity Recovery And Interior Laboratory (GRAIL) mission suggests that lava tubes on the moon could have diameters in excess of more than half a mile (1 kilometer). These features could support future long-term human exploration on the moon, offering shelter from cosmic radiation, meteorite impacts and the wild temperature swings of lunar day and night, according to scientists with Purdue University who performed the study.
David Blair, a graduate student in Purdue’s Department of Earth, Atmospheric and Planetary Sciences, led the study that examined whether empty lava tubes more than 1 kilometer wide could remain structurally stable on the moon.
The Purdue team found that if lunar lava tubes existed with a strong arched shape like those on Earth, they would be stable at sizes up to 5,000 meters, or several miles wide, on the moon.
“This wouldn’t be possible on Earth, but gravity is much lower on the moon and lunar rock doesn’t have to withstand the same weathering and erosion,” Blair reported. “In theory, huge lava tubes — big enough to easily house a city — could be structurally sound on the moon.”