NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Lunar landing module. The Antares lander (upper centre) in the Fra Mauro area on the surface of the Moon. The tracks seen leading from Antares were formed by the Modular Equipment Transport (MET). This was used to transport equipment and collected samples around the Moon's surface. The MET's apparent weight decreased from 70 kilograms (kg), to around 11 Kg, due to the Moon's gravity being one-sixth that on Earth. As a result, the tracks formed by the MET on the soft surface of the Moon are only 19 millimetres deep. This was the first use of the MET, during the Apollo 14 mission of 1971 (31 January to 9 February).
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