A bit exotic, but this wowed my mind, even though I don’t understand it well.

If it doesn’t make sense, just ignore it. I’m not even sure how to express it but here goes:

In the firmament a Christmas Present of Physics, was observed. WOW.

The temperature of the solar corona has been a mystery. It doesn’t fit in with the previously known physics. A serious issue as it means that we humans didn’t understand crucial things going on in stars. Now new physics has been “discovered” using a numerical simulation of stellar behaviour. I don’t yet grok it properly, but this is big news, in my view.

[Magnetohydrodynamics has always fascinated me. (I sometimes even wonder what Biomagnethydrodynamics will bring to understanding of our universe.)]

See https://phys.org/news/2022-12-world-largest-turbulence-simulation-unmasks.html

More information: Chuanfei Dong et al, Reconnection-driven energy cascade in magnetohydrodynamic turbulence, Science Advances (2022). DOI: 10.1126/sciadv.abn7627 (https://www.science.org/doi/10.1126/sciadv.abn7627)

Journal information: Physical Review Letters, Science Advances

The abstract says:
“Magnetohydrodynamic turbulence regulates the transfer of energy from large to small scales in many astrophysical systems, including the solar atmosphere. We perform three-dimensional magnetohydrodynamic simulations with unprecedentedly large magnetic Reynolds number to reveal how rapid reconnection of magnetic field lines changes the classical paradigm of the turbulent energy cascade. By breaking elongated current sheets into chains of small magnetic flux ropes (or plasmoids), magnetic reconnection leads to a previously undiscovered range of energy cascade, where the rate of energy transfer is controlled by the growth rate of the plasmoids. As a consequence, the turbulent energy spectra steepen and attain a spectral index of −2.2 that is accompanied by changes in the anisotropy of turbulence eddies. The omnipresence of plasmoids and their consequences on, for example, solar coronal heating, can be further explored with current and future spacecraft and telescopes.”

If I work at it I may grok some part of that!

This image might help you to grok this remarkable 3D application of the laws that drive our reality.