how strong is its magnetic field compared to earth?
It has an external magnetic field of generally less than 0.2 nanoteslas, or less than one hundred thousandth that of Earth.
Moon
The Moon has an external magnetic field of generally less than 0.2 nanoteslas, or less than one hundred thousandth that of Earth.
where was the first moon landing launched from Kennedy Space Center what was the name of the mission? Apollo 11 which operations were performed on the surface of the moon? They jettisoned "Eagle" before they performed the maneuvers that propelled "Columbia" out of the last of its 30 lunar orbits onto a trajectory back to Earth. what is the surface geology of the said astronomical body like? Its atmosphere and oceans were formed by volcanic activity and outgassing.
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Moon [SEP] Magnetic field
The Moon has an external magnetic field of generally less than 0.2 nanoteslas, or less than one hundred thousandth that of Earth. The Moon does not currently have a global dipolar magnetic field and only has crustal magnetization likely acquired early in its history when a dynamo was still operating. However, early in its history, 4 billion years ago, its magnetic field strength was likely close to that of Earth today. This early dynamo field apparently expired by about one billion years ago, after the lunar core had completely crystallized. Theoretically, some of the remnant magnetization may originate from transient magnetic fields generated during large impacts through the expansion of plasma clouds.