Apollo 17 astronaut's notebook sold at auction

A notebook used by Apollo 17 astronaut Gene Cernan during the final manned mission to the Moon was sold for $510,000 at an auction organized by RR Auction on October 22, 2026.

Notebook's size and content

The notebook, measuring approximately 8.9 by 6.4 centimeters and containing 25 sheets, was used to record handwritten instructions for an improvised repair on the lunar vehicle.

Repair needed after fender damage

The repair was necessary after the lunar module's fender was torn during the first extravehicular activity, causing dust to damage equipment and astronauts.

Ground teams devised a solution

Ground teams in Houston devised a solution using adhesive tape, cards, and pliers, which Cernan transcribed onto the notebook before constructing the makeshift fender.

Notebook remained with Cernan for decades

The notebook, which remained with Cernan for decades after being returned by NASA in 1973, was authenticated by a letter from Cernan dated December 31, 2013.

Notebook contains various items

The notebook's pages include technical instructions, maps of planned routes, and a whimsical drawing of a dog in a space suit. The document is now part of the National Air and Space Museum's collection.