The Apollo 15 was the fourth mission that allowed humans to walk on the Moon. It consisted of the Command and Service Module (CSM) and the Lunar Module (LM). The CSM took images of the surface and communicated with Earth. The LM carried the Astronauts and Apollo Lunar Surface Experiments Package (ALSEP) to the surface.
urn:nasa:pds:context:investigation:mission.apollo_15
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