The Math That Saved Apollo 13 Just Sold For $388,375

The Lunar Module Systems Activation Checklist Book from the Apollo 13 mission was sold at auction last night.

The handwritten numbers are part of the calculations made by Apollo 13 Commander James Lovell, just two hours after a service module’s oxygen tank explosion left them marooned in space. The calculations were crucial to put the ship on course to return it to earth. Read the full story here.

Via: themysteryworld.com