Huge magma oceans of Super-Earth exoplanets could produce a strong magnetic field. Credit: NASA
Super-Earths’ magnetic fields generated by magma oceans - science news space

Super-Earths are very common among the newly-discovered exoplanets. But, do they have magnetic fields, like Earth?

Using computer simulations researchers concluded that they do, indeed, possess magnetic fields, however, they are generated differently. On Earth, the source is the molten-iron outer core acting as a dynamo. On Super-Earths, the field is likely produced by the planets’ magma oceans.

The magma oceans generate a strong magnetic field and maybe the same phenomenon happened in the early days of Earth when our planet was covered by melted rock.

Read the full story: University of California Berkeley
Scientific publication: Nature Communications