Grissom City is a city located on Earth's moon of Luna.

The city was once the site of the Grissom Dome Collapse, in which the pressurized dome of the city collapsed. Over forty-seven people died in the initial depressurization, though a resident named Nicholas Jackson led several hundred survivors to Armstrong City through the tunnels to a Lunar schooner. Grissom's dome was repaired soon after.

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