Scientists found a moon cave that’s big enough to be an astronaut base

Scientists found a moon cave that’s big enough to be an astronaut base

Scientists with Japan’s space agency have announced they have discovered what appears to be a humongous cave on the surface of the moon—a potential spot for astronauts to set up an exploratory base. It has been hypothesized that the walls of the cave—what remains of a 3.5 billion-year-old lava tube—could serve as a shield for…