In the silence of the lunar surface, a six-storey mass of rock arrived unannounced in 2024, carving a wound into the Moon as wide as a major stadium — and no atmosphere stood in its way. NASA scientists, studying imagery from the long-orbiting Lunar Reconnaissance Orbiter, have named the resulting depression McGetchin crater, the largest newly formed impact site discovered anywhere in the solar system. The finding arrives not as mere astronomical curiosity but as a quiet reckoning: humanity is planning to live there by the 2030s, and the Moon does not offer the invisible shield Earth's inhabit