While researchers have believed for some time that magnetic fields of femto-Gauss strength extend to the largest scales in the universe — to scales larger than the largest clusters of galaxies — it is an unresolved mystery how such magnetic fields can have been created in the early universe.

One logical possibility is that the magnetic fields were enhanced by the primordial period of inflation, which is needed also to solve the flatness and horizon problem in the standard Big-Bang model. But the problem is that magnetic fields generated during inflation have been believed to quickly be washed away by the subsequent ordinary expansion of the universe making successful inflationary magnetogenesis a challenge.

Recently the researchers Takeshi Kobayashi from International Centre for Theoretical Physics in Italy and Martin S. Sloth from University of Southern Denmark have shown that due to Faraday’s law of induction, the assumed evolution of electromagnetic fields after inflation is different than previously assumed if there are also strong primordial electric fields.

“This opens a new door to our understanding of the origin of cosmic magnetic fields,” says Martin S. Sloth, professor, CP3-Origins, Center for Cosmology and Particle Physics Phenomenology, University of Southern Denmark. (1)

Magnetic fields everywhere. And yet we cannot understand why magnetic fields are everywhere. One day we will know. But how can we know anything else without knowing the obvious? How can we know magnetism if we cannot explain how the massive prevailing fields in the universe are formed? How can we know the secrets of life if we cannot understand life and how it emerged? How can we know about gravity without knowing how it can be paired with the other major theory of the cosmos (QM)?

How arrogant must we be to know anything without knowing everything?

Behold one of the dirty secrets of the science process of creating models.

That they work based on what they explain and not based on what they don’t!

Behold one of the greatest secrets of men.

That they know based on only what they know…

But one day we will know everything.

And then, only then, will we know anything…

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