Canada lunar sample displays the landing of Apollo 17 on the Moon, which was memorialised by astronauts Eugene A. Cernan and Harrison H. Schmitt when they talked directly to the "youth ambassadors" from the surface of the Moon. Matthews was able to see astronaut Neil Armstrong personally at the luxury hotel in Orlando, Florida. He also got quite acquainted with Armstrong's daughter and became lifetime pen pals with her. The program directors promised each "youth ambassador" a lunar sample from the Apollo 17 mission. In 1973 Matthews was sent the Canadian "goodwill moon rock" encased in a clear Lucite ball about the size of
Apollo 17 out to the Moon, back to Earth, and in lunar orbit. The Apollo 17 crew conducted an experiment, also conducted on Apollo 16, with the objective of linking these light flashes with cosmic rays. As part of an experiment conducted by NASA and the University of Houston, one astronaut wore a device that recorded the time, strength, and path of high-energy atomic particles that penetrated the device. Analysis of the results concluded that the evidence supported the hypothesis that the flashes occurred when charged particles travelled through the retina in the eye. Apollo 17 was the only lunar surface expedition