26Al AGN GRMHD MHD winds MHD–accretion TBD X-ray binaries accreting black holes accretion discs–jets accretion disks active galactic nuclei active galaxies black holes blazars cosmic ray knee and ankle cosmic rays effective lifetime galaxies: active gamma-ray bursts global jets helical magnetic fields high energy astrophysics high-power laser systems jets kink-like instability laser plasma laser-induced nuclear reactions magnetic fields magneto-hydrodynamics massive star supernovae