In November 1969, American astronauts Charles Conrad Jr. and Alan Bean landed about 180 meters from the Surveyor 3 probe, a robotic spacecraft that had been on the Moon since April 1967. This marked the first time humans returned to a location they had previously sent a probe to, retrieving parts of the machine to study how materials degrade in the harsh environment of space. The astronauts collected about 10 kilograms of components, including the probe’s television camera, to analyze the effects of the lunar vacuum and radiation. The Surveyor 3 probe had landed in the Ocean of Storms, a large, flat area on the Moon's surface chosen for its suitability for landing. It was designed to send images and gather data about the Moon’s surface before the first human landings. After transmitting its data, the probe was left to sit in silence for 31 months, exposed to extreme temperatures and the vacuum of space. Although engineers had expected the probe to stop functioning, the idea of retrieving it for further study began to take shape within NASA. The Apollo 12 lunar module, carrying Conrad and Bean, landed just 180 meters from Surveyor 3, a feat that had never been attempted before. The precision required to land so close to a specific point on such a rugged terrain was unprecedented. Despite the difficulty, the astronauts successfully reached the probe, which had been covered in a thin layer of lunar dust. They found it had changed color from white to a brownish hue, but this was not due to radiation—it was simply the dust that had accumulated over nearly three years. Conrad and Bean carefully collected parts of the probe, including the television camera and some wiring, using modified tools. The components were placed in a special bag made of Teflon fabric and returned to Earth. Upon arrival, the camera was studied in a laboratory in Houston, then sent to Hughes Aircraft in California, the company that had built it. Scientists wanted to understand how materials degrade in space, knowledge that would help improve future spacecraft and equipment. A small piece of this historic mission remains on display today. A fragment of the Surveyor 3 probe is currently on loan to the Cosmosphere in Hutchinson, Kansas, where it serves as a quiet but powerful reminder of the first time humans returned to a place they had previously sent a machine to explore.