Lunar and Martian tunnels could contain offworld colonies – Boing Boing

Science-fiction authors like Kim Stanley Robinson have occasionally imagined pressurizing craters or lava tubes and filling them with air. But Pozzobon said that scenario is unlikely, not least because in the moon’s lava tubes,  openings can be as wide as a football field.”Due to their huge size and the possibility of having leaks due to the fracturing of the rocks, I would see pressurizing them very unlikely,” Pozzobon told Live Science. “What is more likely is to establish settlements within t…

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