The moon doesn't have a magnetic field, so why does it have magnetic rocks?

[Admin]

A new simulation suggests a massive asteroid impact may have briefly supercharged the moon's magnetic field, leaving behind magnetized rocks that still carry its signature.

The moon doesn't have a magnetic field, so why does it have magnetic rocks? : Read more

 

[contrarian]

The Moon's magnetic field strength in its early days is open to debate. Mars has a similar magnetic surface, with the most highly magnetized rock in the southern half*. This appears to be similar to magnetic dichotomy of the Moon, and could suggest it had a stronger magnetic field in its infancy - just like Mars.

* https://en.wikipedia.org/wiki/Magnetic_field_of_Mars

 

[Classical Motion]

I believe that all matter has an equal M to it’s E. So in proportion, all objects have the same amount. Of E and M.

The only difference between the earth and moon------ is that the earth’s M is lined up more than the moon’s M.

The M of current---- is just aligned charge. When the current stops, that M, dissociates into many directions and you can’t measure it.

But it is still there. Even without current.

 

[Classical Motion]

But if the moon rotated a few times during an earth day, you might measure one.