Published 3 years ago

A lunar magnetic field may have lasted for only a short time

Summary by Ground News

A lunar magnetic field may not have just been short-lived; it may have persisted for only a blip in geologic time. Researchers found strong magnetization in a bit of impact glass that formed during the collision of a meteorite with the lunar surface just 2 million years ago. The magnetization of the bit of glass happened due to the meteorite impact that also formed the glass itself.

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NewScientist

The moon may never actually have had a strong magnetic field

We used to think that the moon had a strong magnetic field like Earth's, but a new analysis of rocks collected by the Apollo missions suggests that previous signs of magnetism came from asteroid impacts instead

3 years ago·Baltimore, United States

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Science News

A lunar magnetic field may have lasted for only a short time

A lunar magnetic field may not have just been short-lived; it may have persisted for only a blip in geologic time, a new study finds.Shortly after the moon formed about 4.5 billion years ago, it may have begun generating a magnetic field, a protective sheath that can deflect away charged particles from the sun (SN: 1/11/17). Now, analyses of moon rocks suggest that any lunar magnetic field was gone by at least 4 billion years ago, researchers re…

3 years ago·United States

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