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Mercury likely has a partly molten core, a new study indicates. This molten material may be generating the planet's weak magnetic field, whose existence has been a puzzle since its discovery more than 30 years ago.
Originally posted by sy.gunson
Just out of interest Mars has no magnetic field right ?
Please correct me if I am wrong. I'd like to know.
Yet the surface of mars shows evidence of volcanic activity true ?
And what of our Moon with evidence of historical basalt lava flows. I take it the Moon has no Magnetic field, so what about Venus and has anybody got some explanations ?