<< Contrary to prevailing theories, the first results of POLAR reveal that the high energy photons coming from gamma ray bursts are neither completely chaotic, nor completely organized, but a mixture of the two. Within short time intervals, the photons are found to oscillate in the same direction, but the oscillation direction changes with time. >>
The orderly chaos of black holes. University of Geneva. Jan 14, 2019.
https://m.phys.org/news/2019-01-orderly-chaos-black-holes.html
Shuang-Nan Zhang, Merlin Kole, et al. Detailed polarization measurements of the prompt emission of five gamma-ray bursts. Nature Astronomy (2019) Jan 14 doi: 10.1038/s41550-018-0664-0