Lunar Reconnaissance Orbiter

The Lunar Reconnaissance Orbiter is an observation spacecraft NASA sent to circle the Moon. Much like an airplane that maps the ground below by scanning it with cameras and radar, this orbiter keeps circling the Moon, measuring its terrain with lasers and taking pictures.

The orbiter carries two main instruments. One is an altimeter that fires a laser to measure the distance to the surface, recording numbers for how deep craters are and how steep slopes are. The other is a camera that photographs the surface, stitching the images together into a map of the entire Moon. All this data is stored in NASA's public data archive, where anyone can download and use it.

More recently, this public data has started showing up as raw material AI models use when building things themselves. Because it's real observational data, AI can produce results based on the Moon's actual contours rather than terrain it made up.

The article explains that "the terrain and crater depths were measured by LOLA, the laser altimeter aboard the Lunar Reconnaissance Orbiter (LRO)." One point that's easy to mix up: the LRO itself isn't AI — it's a NASA observation spacecraft. It was the AI model Claude that read this data and built the app. The orbiter only supplied the raw material; a separate party did the work of calculating paths and writing code.