PHYS 2021 Study Guide - Quiz Guide: Lunar Prospector, Geology Of The Moon, Apollo Lunar Surface Experiments Package
Document Summary
Apollo missions proposed in 1961, first mission launched in 1969. Astronauts collected 382 kg of samples for analysis. Each landing after the first deployed an alsep, which included seismometers. Orbiting command module carried a wide range of instrumentation to photograph and analyze the surface. Moon previously had a weak magnetic field when the rocks solidified billions of years ago. Core partially solidified lunar magnetic field disappeared. Sent to probe character of moon"s core. Made measurements of lunar gravity & how the moon responds when passing through earth"s magnetosphere. Moon has a partially liquid, iron-rich core (700 km in diameter), 2-3% of the moon"s mass. Moon has a iron-rich solid inner core ( 300 mi in diameter) with a 55 mile thick outer fluid shell. Few and weak moonquakes, correlated with spring tides. Crust on farside = thicker than crust on near side.
