Earthwalk Day 1280 (25 July 2025), 12,757 km: San Diego Air and Space Museum

Wednesday’s walking took me to just 400 meters shy of the end of Leg 49. Thursday and today were not great days for distance — I was occupied with setting up the American Travelling Morrice, which is going to eat into my distance over the next week too — but they totaled 9.4 km, so yeah, that leg’s over.

The destination was the San Diego Air and Space Museum. Their collection includes the command module from the Apollo 9 mission. Unlike Apollos 8 and 10, 9 didn’t get beyond low Earth orbit; their main goal was to check out the lunar module, which was flying for the first time, and to demonstrate rendezvous and docking between the command and lunar modules. Among the tests performed was use of the lunar module descent stage as an emergency backup for the service module engine. Four missions later, Apollo 13 made use of that capability in a genuine emergency.

Leg 50 begins with retracing my steps back toward the north. Near Miramar, I’ll split off toward the northeast.

A map showing my progress is here, a spreadsheet with progress detail is here, and a Google Earth KMZ file is in this Google Drive folder. Present coordinates: 32.792°N, 117.166°W.