How did Mars lose its magnetism?

Mars is the only major planet in our solar system that doesn’t have a planet-wide magnetic field. Given the planet’s proximity and similarity to Earth, the lack of a protective magnetic field has ignited the curiosity of scientists. Now a scientist has come up with an interesting explanation.  Read more here: https://www.sciencenews.org/article/wate-may-have-killed-mars-magnetic-field.

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